<?php
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
if (!isset($_GET['echostr'])){
    $wechatObj->responseMsg();
}else{
    $wechatObj->valid();
}
class wechatCallbackapiTest{
    //验证消息
private static $deveplor = "柒彩城市休闲";
    public function valid(){
        $echoStr = $_GET["echostr"];
        if($this->checkSignature()){
            echo $echoStr;
            exit;
        }
    }

    //检查签名
    private function checkSignature(){
        $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;
        }
    }


    //响应消息
    public function responseMsg(){
        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
        if (!empty($postStr)){
            $this->logger("R ".$postStr);
            $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
            $RX_TYPE = trim($postObj->MsgType);


            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":
                    $result = $this->receiveVideo($postObj);
                    break;
                case "link":
                    $result = $this->receiveLink($postObj);
                    break;
                default:
                    $result = "unknown msg type: ".$RX_TYPE;
                    break;
            }
            $this->logger("T ".$result);
            echo $result;
        }else {
            echo "";
            exit;
        }
    }//responseMsg


    //接收事件消息//openid=$object->FromUserName
    private function receiveEvent($object){
        $content = "";
        switch ($object->Event){
            case "subscribe":
                $content = $object->FromUserName."感谢您关注。".self::$deveplor;
                $content .= (!empty($object->EventKey))?("\n来自二维码场景 ".str_replace("qrscene_","",$object->EventKey)):"";
                break;
            case "unsubscribe":
                $content = "取消关注";
                break;
            case "SCAN":
                $content = "扫描场景 ".$object->EventKey;
                break;
            case "CLICK":
                switch ($object->EventKey){
                    case "V1001_aboutus":
                        $content = array();
                        $content[] = array("Title"=>"翰云",  "Description"=>"翰云数据库", "PicUrl"=>"http://www.cloudwave.cn/wx/images/1.jpg", "Url" =>"http://www.cloudwave.cn");
                        break;
                    default:
                        $content = "点击菜单：".$object->EventKey;
                        break;
                }
                break;
            case "LOCATION":
                $content = "上传位置：纬度 ".$object->Latitude.";经度 ".$object->Longitude;
                break;
            case "VIEW":
                $content = "跳转链接 ".$object->EventKey;
                break;
            default:
                $content = "receive a new event: ".$object->Event;
                break;
        }
if(is_array($content)){
            if (isset($content[0]['PicUrl'])){
                $result = $this->transmitNews($object, $content);
            }else if (isset($content['MusicUrl'])){
                $result = $this->transmitMusic($object, $content);
            }
        }else{
            $result = $this->transmitText($object, $content);
        }
        return $result;
    }


    //接收文本消息
    private function receiveText($object){
        switch ($object->Content){
case "新闻":
                $content = array();
                $content[] = array("Title"=>"新闻",  "Description"=>"行业新闻资讯", "PicUrl"=>"http://www.cloudwave.cn/images/banner.jpg", "Url" =>"http://www.cloudwave.cn/xwzxlb.jsp");
                break;
case "访谈":
                $content = array();
                $content[] = array("Title"=>"访谈",  "Description"=>"访谈", "PicUrl"=>"http://www.cloudwave.cn/images/banner.jpg", "Url" =>"http://www.cloudwave.cn/zxly.jsp");
                break;
case "知识":
                $content = array();
                $content[] = array("Title"=>"知识",  "Description"=>"知识库", "PicUrl"=>"http://www.cloudwave.cn/images/banner.jpg", "Url" =>"http://www.cloudwave.cn/aboutus.jsp");
                break;
case "案例":
case "方案":
                $content = array();
                $content[] = array("Title"=>"案例",  "Description"=>"典型案例", "PicUrl"=>"http://www.cloudwave.cn/images/banner.jpg", "Url" =>"http://www.cloudwave.cn/dxal.jsp");
                break;
case "技术":
case "服务":
case "售前":
case "售后":
                $content = array();
                $content[] = array("Title"=>"技术服务",  "Description"=>"技术服务", "PicUrl"=>"http://www.cloudwave.cn/images/banner.jpg", "Url" =>"http://www.cloudwave.cn/product.jsp");
                break;
case "大数据":
                $content = array();
                $content[] = array("Title"=>"大数据",  "Description"=>"胡说大数据", "PicUrl"=>"http://www.cloudwave.cn/images/banner.jpg", "Url" =>"http://www.cloudwave.cn");
                break;
case "数据库":
                $content = array();
                $content[] = array("Title"=>"数据库",  "Description"=>"翰云数据库", "PicUrl"=>"http://www.cloudwave.cn/images/banner.jpg", "Url" =>"http://www.cloudwave.cn/product.jsp");
                break;
case "留言":
                $content = array();
                $content[] = array("Title"=>"留言",  "Description"=>"联系我们", "PicUrl"=>"http://www.cloudwave.cn/images/banner.jpg", "Url" =>"http://www.cloudwave.cn/zxly.jsp");
                break;
case "文化":
                $content = array();
                $content[] = array("Title"=>"文化",  "Description"=>"企业文化", "PicUrl"=>"http://www.cloudwave.cn/images/banner.jpg", "Url" =>"http://www.cloudwave.cn/ygfc.jsp");
                break;
case "活动":
case "中奖":
                $content = array();
                $content[] = array("Title"=>"活动",  "Description"=>"最新活动", "PicUrl"=>"http://www.cloudwave.cn/images/banner.jpg", "Url" =>"http://www.cloudwave.cn");
                break;
case "你好":
                $content = "时间都去哪儿，都去大数据!";
                break; 
            case "图文":
            case "单图文":
                $content = array();
                $content[] = array("Title"=>"单图文标题",  "Description"=>"单图文内容", "PicUrl"=>"http://www.cloudwave.cn/images/banner.jpg", "Url" =>"http://www.cloudwave.cn");
                break;
            case "多图文":
                $content = array();
                $content[] = array("Title"=>"多图文2标题", "Description"=>"", "PicUrl"=>"http://www.cloudwave.cn/wx/images/1.jpg", "Url" =>"http://www.cloudwave.cn");
                $content[] = array("Title"=>"多图文2标题", "Description"=>"", "PicUrl"=>"http://d.hiphotos.bdimg.com/wisegame/pic/item/f3529822720e0cf3ac9f1ada0846f21fbe09aaa3.jpg", "Url" =>"http://www.cloudwave.cn");
                $content[] = array("Title"=>"多图文3标题", "Description"=>"", "PicUrl"=>"http://g.hiphotos.bdimg.com/wisegame/pic/item/18cb0a46f21fbe090d338acc6a600c338644adfd.jpg", "Url" =>"http://www.cloudwave.cn");
                break;
//            case "音乐":
//                $content = array("Title"=>"最炫民族风", "Description"=>"歌手：凤凰传奇", "MusicUrl"=>"http://121.199.4.61/music/zxmzf.mp3", "HQMusicUrl"=>"http://121.199.4.61/music/zxmzf.mp3");
 //               break;
            default:
                $content = "没找到二师兄，请大师兄在”大数据“”新闻“”知识“”文化“”案例“”技术“”活动“”留言“房间休息片刻，一会就回来。";
                break;
        }
        if(is_array($content)){
            if (isset($content[0]['PicUrl'])){
                $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){
        $content = "你发送的是位置，纬度为：".$object->Location_X."；经度为：".$object->Location_Y."；缩放级别为：".$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){
        $content = array("MediaId"=>$object->MediaId, "ThumbMediaId"=>$object->ThumbMediaId, "Title"=>"", "Description"=>"");
        $result = $this->transmitVideo($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){
        $textTpl = "<xml>
        <ToUserName><![CDATA[%s]]></ToUserName>
        <FromUserName><![CDATA[%s]]></FromUserName>
        <CreateTime>%s</CreateTime>
        <MsgType><![CDATA[text]]></MsgType>
        <Content><![CDATA[%s]]></Content>
        </xml>";
        $result = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content);
        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']);

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

        $result = sprintf($textTpl, $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']);

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

        $result = sprintf($textTpl, $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']);

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

        $result = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time());
        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']);
        }
        $newsTpl = "<xml>
        <ToUserName><![CDATA[%s]]></ToUserName>
        <FromUserName><![CDATA[%s]]></FromUserName>
        <CreateTime>%s</CreateTime>
        <MsgType><![CDATA[news]]></MsgType>
        <Content><![CDATA[]]></Content>
        <ArticleCount>%s</ArticleCount>
        <Articles>
        $item_str</Articles>
        </xml>";

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

    //回复音乐消息
    private function transmitMusic($object, $musicArray){
        $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']);

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

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

    //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 = 10000;
            $log_filename = "log.xml";
            if(file_exists($log_filename) and (abs(filesize($log_filename)) > $max_size)){unlink($log_filename);}
            file_put_contents($log_filename, date('H:i:s')." ".$log_content."\r\n", FILE_APPEND);
        }
    }
}