微信自定义分享获取参数方法与调用 - xiaogardenz/Work GitHub Wiki

php相关代码

class weixin
{
 public function getSignPackage() {
        $this->appId = C('wx.AppID');
        $this->appSecret = C('wx.AppSecret');
        $jsapiTicket = $this->getJsApiTicket();
        $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
        // TODO: 受服务器配置影响: Nginx 转发 Apache 导致无法识别 https 的影响
        // 暂时强行修改为 https
        $protocol = 'http://';
        $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
        $timestamp = time();
        $nonceStr = random(16);
        // 这里参数的顺序要按照 key 值 ASCII 码升序排序
        $string = sprintf(
            "jsapi_ticket=%s&noncestr=%s&timestamp=%s&url=%s",
            $jsapiTicket,
            $nonceStr,
            $timestamp,
            $url
        );
        $signature = sha1($string);
        $signPackage = array(
            "appId"     => $this->appId,
            "nonceStr"  => $nonceStr,
            "timestamp" => $timestamp,
            "url"       => $url,
            "signature" => $signature,
            "rawString" => $string
        );
        return $signPackage;
    }

    private function getJsApiTicket() {
        $jsapiTicket = S('wechat_jsapi_ticket');
        if ($jsapiTicket === false) {
            $accessToken = $this->getAccessToken();
            $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";
            $res = json_decode($this->httpGet($url));
            if ($res->ticket) {
                S('wechat_jsapi_ticket', $res->ticket, 7000); // 有效期为7200秒
                return $res->ticket;
            }
        }
        return $jsapiTicket;

    }

    private function getAccessToken() {
        $accessToken = S('wechat_access_token');
        if ($accessToken === false) {
            $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";
            $res = json_decode($this->httpGet($url));
            if ($res->access_token) {
                S('wechat_access_token', $res->access_token, 7000); // 有效期为7200秒
                return $res->access_token;
            }
        }
        return $accessToken;

    }

    private function httpGet($url) {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_TIMEOUT, 500);
        // 为保证第三方服务器与微信服务器之间数据传输的安全性,所有微信接口采用https方式调用,必须使用下面2行代码打开ssl安全校验。
        // 如果在部署过程中代码在此处验证失败,请到 http://curl.haxx.se/ca/cacert.pem 下载新的证书判别文件。
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, true);
        curl_setopt($curl, CURLOPT_URL, $url);

        $res = curl_exec($curl);
        curl_close($curl);

        return $res;
    }

}

js相关代码

先引入:http://res.wx.qq.com/open/js/jweixin-1.2.0.js
wx.config({
        debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来,若要查看传入的参数,可以在pc端打开,参数信息会通过log打出,仅在pc端时才会打印。
        appId: '<{$wxinfo.appId}>', // 必填,公众号的唯一标识
        timestamp: '<{$wxinfo.timestamp}>', // 必填,生成签名的时间戳
        nonceStr: '<{$wxinfo.nonceStr}>', // 必填,生成签名的随机串
        signature: '<{$wxinfo.signature}>',// 必填,签名,见附录1
        jsApiList: ['onMenuShareTimeline','onMenuShareAppMessage'] // 必填,需要使用的JS接口列表,所有JS接口列表见附录2
    });
    wx.ready(function () {
        wx.checkJsApi({
            jsApiList: [
                'onMenuShareTimeline',
                'onMenuShareAppMessage'
            ]
        });

        wx.onMenuShareTimeline({
            title: wx_share_title, // 分享标题
            link: wx_share_link, // 分享链接
            imgUrl: wx_share_imgUrl, // 分享图标
            success: function () {
            },
            cancel: function () {
            }
        });

        wx.onMenuShareAppMessage({
            title: wx_share_title, // 分享标题
            desc: wx_share_intro, // 分享描述
            link: wx_share_link, // 分享链接
            imgUrl: wx_share_imgUrl, // 分享图标
            type: '', // 分享类型,music、video或link,不填默认为link
            dataUrl: '', // 如果type是music或video,则要提供数据链接,默认为空
            success: function () {
                // 用户确认分享后执行的回调函数
            },
            cancel: function () {
                // 用户取消分享后执行的回调函数
            }
        });

    });
    wx.error(function (res) {

    });