<?php
/*
    这是一个自动回复的PHP
*/
header(‘Content-type:text‘);

define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
if (!isset($_GET[‘echostr‘])) {
    $wechatObj->responseMsg();
}else{
    $wechatObj->valid();
}

class wechatCallbackapiTest
{
    //验证签名
    public function valid()
    {
        $echoStr = $_GET["echostr"];
        $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){
            echo $echoStr;
            exit;
        }
    }

    //响应消息
    public function responseMsg()
    {
        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
        if (!empty($postStr)){
            $this->logger("R \r\n".$postStr);
            $postObj = simplexml_load_string($postStr, ‘SimpleXMLElement‘, LIBXML_NOCDATA);
            $RX_TYPE = trim($postObj->MsgType);
            
            //消息类型分离
            switch ($RX_TYPE)
            {
                case "event":
                    $result = $this->receiveEvent($postObj);
                    break;
                case "text":
                    $result = $this->receiveText($postObj);
                    break;
                case "image":
                    $result = $this->receiveImage($postObj);
                    break;
                case "location":
                    $result = $this->receiveLocation($postObj);
                    break;
                case "voice":
                    $result = $this->receiveVoice($postObj);
                    break;
                case "video":
                case "shortvideo":
                    $result = $this->receiveVideo($postObj);
                    break;
                case "link":
                    $result = $this->receiveLink($postObj);
                    break;
                default:
                    $result = "unknown msg type: ".$RX_TYPE;
                    break;
            }
            $this->logger("T \r\n".$result);
            echo $result;
        }else {
            echo "";
            exit;
        }
    }

    //接收事件消息
    private function receiveEvent($object)
    {
        $content = "";
        switch ($object->Event)
        {
            case "subscribe":
                $content = "欢迎使用互联网CAE自动资料机器人\n请回复以下关键字：\n文本 表情 单图文 多图文 音乐\n请按住说话 或 \n点击 + 再分别发送以下内容：语音 图片 小视频 我的收藏 位置";
                //
                //$content .= (!empty($object->EventKey))?("\n来自二维码场景 ".str_replace("qrscene_","",$object->EventKey)):"";
                //后面的链接会变成可点击的链接
                $content .= "\n\n".‘<a href="http://www.cnblogs.com/ironwang/p/6376873.html">互联网CAE 伊罗赛创工作室</a>‘;
                break;
            default:
                $content = "receive a new event: ".$object->Event;
                break;
        }

        if(is_array($content)){
            $result = $this->transmitNews($object, $content);
        }else{
            $result = $this->transmitText($object, $content);
        }
        return $result;
    }

    //接收文本消息
    private function receiveText($object)
    {
        $keyword = trim($object->Content);
        //自动回复模式
        if (strstr($keyword, "资料")){
            $content = ‘点击一下资料库‘."\n".‘<a href="http://www.cnblogs.com/Elosithang/p/6401061.html">互联网CAE 分享资料</a>‘;
            
        }else if (strstr($keyword, "表情")){
            
            $content = "微笑：/::)\n乒乓：/:oo\n中国：".$this->bytes_to_emoji(0x1F1E8).$this->bytes_to_emoji(0x1F1F3)."\n仙人掌：".$this->bytes_to_emoji(0x1F335);



            //这里开始添加流体相关的关键字
            }else if (strstr($keyword, "cfd")){
            $content = ‘点击一下资料库‘."\n".‘<a href="http://www.cnblogs.com/Elosithang/p/6401061.html">互联网CAE-CFD 分享资料</a>‘;

            }else if (strstr($keyword, "流体")){
            $content = ‘点击一下资料库‘."\n".‘<a href="http://www.cnblogs.com/Elosithang/p/6401061.html">互联网CAE-NVH 分享资料</a>‘;
            //外流场
            //整车
            //机舱
            //HVAC
            //空调舒适性
            //电池包
            //涉水
            //脚本
            //最新软件
            //

            }else if (strstr($keyword, "Star")){
            $content = ‘点击一下资料库‘."\n".‘<a href="http://www.cnblogs.com/Elosithang/p/6401061.html">互联网CAE-Starccm+ 分享资料</a>‘;

            }else if (strstr($keyword, "star")){
            $content = ‘点击一下资料库‘."\n".‘<a href="http://www.cnblogs.com/Elosithang/p/6401061.html">互联网CAE-Starccm+ 分享资料</a>‘;

            }else if (strstr($keyword, "STAR")){
            $content = ‘点击一下资料库‘."\n".‘<a href="http://www.cnblogs.com/Elosithang/p/6401061.html">互联网CAE-Starccm+ 分享资料</a>‘;
            
            //流体添加到这里为止
            


        }else if (strstr($keyword, "单图文")){
            $content = array();
            $content[] = array("Title"=>"单图文标题",  "Description"=>"单图文内容", "PicUrl"=>"http://discuz.comli.com/weixin/weather/icon/cartoon.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
            
        }else if (strstr($keyword, "图文") || strstr($keyword, "多图文")){
            $content = array();
            $content[] = array("Title"=>"多图文1标题", "Description"=>"", "PicUrl"=>"http://discuz.comli.com/weixin/weather/icon/cartoon.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
            $content[] = array("Title"=>"多图文2标题", "Description"=>"", "PicUrl"=>"http://d.hiphotos.bdimg.com/wisegame/pic/item/f3529822720e0cf3ac9f1ada0846f21fbe09aaa3.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
            $content[] = array("Title"=>"多图文3标题", "Description"=>"", "PicUrl"=>"http://g.hiphotos.bdimg.com/wisegame/pic/item/18cb0a46f21fbe090d338acc6a600c338644adfd.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
            
        }else if (strstr($keyword, "音乐")){
            $content = array();
            $content = array("Title"=>"最炫民族风", "Description"=>"歌手：凤凰传奇", "MusicUrl"=>"http://mascot-music.stor.sinaapp.com/zxmzf.mp3", "HQMusicUrl"=>"http://mascot-music.stor.sinaapp.com/zxmzf.mp3"); 
            
        }else{
//这里修改其他内容            
            $content = ‘为您提供时间:‘.$this->bytes_to_emoji(0x1F1E8)."\n".date("Y-m-d H:i:s",time())."\n".‘点击一下资料库‘."\n".‘<a href="http://www.cnblogs.com/Elosithang/p/6401061.html">互联网CAE 分享资料</a>‘;
            
        }

        if(is_array($content)){
            if (isset($content[0])){
                $result = $this->transmitNews($object, $content);
            }else if (isset($content[‘MusicUrl‘])){
                $result = $this->transmitMusic($object, $content);
            }
        }else{
            $result = $this->transmitText($object, $content);
        }
        return $result;
    }

    //接收图片消息
    private function receiveImage($object)
    {
        $content = array("MediaId"=>$object->MediaId);
        $result = $this->transmitImage($object, $content);
        return $result;
    }

    //接收位置消息
    private function receiveLocation($object)
    {
        $content = "你发送的是位置，经度为：".$object->Location_Y."；纬度为：".$object->Location_X."；缩放级别为：".$object->Scale."；位置为：".$object->Label;
        $result = $this->transmitText($object, $content);
        return $result;
    }

    //接收语音消息
    private function receiveVoice($object)
    {
        if (isset($object->Recognition) && !empty($object->Recognition)){
            $content = "你刚才说的是：".$object->Recognition;
            $result = $this->transmitText($object, $content);
        }else{
            $content = array("MediaId"=>$object->MediaId);
            $result = $this->transmitVoice($object, $content);
        }
        return $result;
    }

    //接收视频消息
    private function receiveVideo($object)
    {
        $content = "上传视频类型：".$object->MsgType;
        $result = $this->transmitText($object, $content);
        return $result;
    }

    //接收链接消息
    private function receiveLink($object)
    {
        $content = "你发送的是链接，标题为：".$object->Title."；内容为：".$object->Description."；链接地址为：".$object->Url;
        $result = $this->transmitText($object, $content);
        return $result;
    }

    //回复文本消息
    private function transmitText($object, $content)
    {
        if (!isset($content) || empty($content)){
            return "";
        }

        $xmlTpl = "<xml>
    <ToUserName><![CDATA[%s]]></ToUserName>
    <FromUserName><![CDATA[%s]]></FromUserName>
    <CreateTime>%s</CreateTime>
    <MsgType><![CDATA[text]]></MsgType>
    <Content><![CDATA[%s]]></Content>
</xml>";
        $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time(), $content);

        return $result;
    }

    //回复图文消息
    private function transmitNews($object, $newsArray)
    {
        if(!is_array($newsArray)){
            return "";
        }
        $itemTpl = "        <item>
            <Title><![CDATA[%s]]></Title>
            <Description><![CDATA[%s]]></Description>
            <PicUrl><![CDATA[%s]]></PicUrl>
            <Url><![CDATA[%s]]></Url>
        </item>
";
        $item_str = "";
        foreach ($newsArray as $item){
            $item_str .= sprintf($itemTpl, $item[‘Title‘], $item[‘Description‘], $item[‘PicUrl‘], $item[‘Url‘]);
        }
        $xmlTpl = "<xml>
    <ToUserName><![CDATA[%s]]></ToUserName>
    <FromUserName><![CDATA[%s]]></FromUserName>
    <CreateTime>%s</CreateTime>
    <MsgType><![CDATA[news]]></MsgType>
    <ArticleCount>%s</ArticleCount>
    <Articles>
$item_str    </Articles>
</xml>";

        $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time(), count($newsArray));
        return $result;
    }

    //回复音乐消息
    private function transmitMusic($object, $musicArray)
    {
        if(!is_array($musicArray)){
            return "";
        }
        $itemTpl = "<Music>
        <Title><![CDATA[%s]]></Title>
        <Description><![CDATA[%s]]></Description>
        <MusicUrl><![CDATA[%s]]></MusicUrl>
        <HQMusicUrl><![CDATA[%s]]></HQMusicUrl>
    </Music>";

        $item_str = sprintf($itemTpl, $musicArray[‘Title‘], $musicArray[‘Description‘], $musicArray[‘MusicUrl‘], $musicArray[‘HQMusicUrl‘]);

        $xmlTpl = "<xml>
    <ToUserName><![CDATA[%s]]></ToUserName>
    <FromUserName><![CDATA[%s]]></FromUserName>
    <CreateTime>%s</CreateTime>
    <MsgType><![CDATA[music]]></MsgType>
    $item_str
</xml>";

        $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
        return $result;
    }

    //回复图片消息
    private function transmitImage($object, $imageArray)
    {
        $itemTpl = "<Image>
        <MediaId><![CDATA[%s]]></MediaId>
    </Image>";

        $item_str = sprintf($itemTpl, $imageArray[‘MediaId‘]);

        $xmlTpl = "<xml>
    <ToUserName><![CDATA[%s]]></ToUserName>
    <FromUserName><![CDATA[%s]]></FromUserName>
    <CreateTime>%s</CreateTime>
    <MsgType><![CDATA[image]]></MsgType>
    $item_str
</xml>";

        $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
        return $result;
    }

    //回复语音消息
    private function transmitVoice($object, $voiceArray)
    {
        $itemTpl = "<Voice>
        <MediaId><![CDATA[%s]]></MediaId>
    </Voice>";

        $item_str = sprintf($itemTpl, $voiceArray[‘MediaId‘]);
        $xmlTpl = "<xml>
    <ToUserName><![CDATA[%s]]></ToUserName>
    <FromUserName><![CDATA[%s]]></FromUserName>
    <CreateTime>%s</CreateTime>
    <MsgType><![CDATA[voice]]></MsgType>
    $item_str
</xml>";

        $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
        return $result;
    }

    //回复视频消息
    private function transmitVideo($object, $videoArray)
    {
        $itemTpl = "<Video>
        <MediaId><![CDATA[%s]]></MediaId>
        <ThumbMediaId><![CDATA[%s]]></ThumbMediaId>
        <Title><![CDATA[%s]]></Title>
        <Description><![CDATA[%s]]></Description>
    </Video>";

        $item_str = sprintf($itemTpl, $videoArray[‘MediaId‘], $videoArray[‘ThumbMediaId‘], $videoArray[‘Title‘], $videoArray[‘Description‘]);

        $xmlTpl = "<xml>
    <ToUserName><![CDATA[%s]]></ToUserName>
    <FromUserName><![CDATA[%s]]></FromUserName>
    <CreateTime>%s</CreateTime>
    <MsgType><![CDATA[video]]></MsgType>
    $item_str
</xml>";

        $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
        return $result;
    }
    //回复第三方接口消息
    private function relayPart3($url, $rawData)
    {
        $headers = array("Content-Type: text/xml; charset=utf-8");
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $rawData);
        $output = curl_exec($ch);
        curl_close($ch);
        return $output;
    }

    //字节转Emoji表情
    function bytes_to_emoji($cp)
    {
        if ($cp > 0x10000){       # 4 bytes
            return chr(0xF0 | (($cp & 0x1C0000) >> 18)).chr(0x80 | (($cp & 0x3F000) >> 12)).chr(0x80 | (($cp & 0xFC0) >> 6)).chr(0x80 | ($cp & 0x3F));
        }else if ($cp > 0x800){   # 3 bytes
            return chr(0xE0 | (($cp & 0xF000) >> 12)).chr(0x80 | (($cp & 0xFC0) >> 6)).chr(0x80 | ($cp & 0x3F));
        }else if ($cp > 0x80){    # 2 bytes
            return chr(0xC0 | (($cp & 0x7C0) >> 6)).chr(0x80 | ($cp & 0x3F));
        }else{                    # 1 byte
            return chr($cp);
        }
    }

    //日志记录
    private function logger($log_content)
    {
        if(isset($_SERVER[‘HTTP_APPNAME‘])){   //SAE
            sae_set_display_errors(false);
            sae_debug($log_content);
            sae_set_display_errors(true);
        }else if($_SERVER[‘REMOTE_ADDR‘] != "127.0.0.1"){ //LOCAL
            $max_size = 1000000;
            $log_filename = "log.xml";
            if(file_exists($log_filename) and (abs(filesize($log_filename)) > $max_size)){unlink($log_filename);}
            file_put_contents($log_filename, date(‘Y-m-d H:i:s‘)." ".$log_content."\r\n", FILE_APPEND);
        }
    }
}
?>