php - 微信开放平台授权，全网发布（别人的源码，未测试） - 《PHP 项目大坑》

一.
 授权流程
 1. 接收component_verify_ticket：
 [1]微信服务器每隔10分钟会向第三方的消息接收地址推送一次component_verify_ticket，拿到后需要在本地做好存储；
 [2]微信第三方平台的消息是加密的（下图），需要进行解密才能获取需要的信息；
 [3]接收并解密消息，代码如下:
/**
     * 授权事件接收URL
     */
    public function msg() {
        import("@.ORG.ArrayTool");
        import("@.ORG.Weixincrypt.WXBizMsgCrypt");
        $timestamp = empty($_GET ['timestamp']) ? '' : trim($_GET ['timestamp']);
        $nonce = empty($_GET ['nonce']) ? '' : trim($_GET ['nonce']);
        $msgSign = empty($_GET ['msg_signature']) ? '' : trim($_GET ['msg_signature']);
        $signature = empty($_GET ['signature']) ? '' : trim($_GET ['signature']);
        $encryptType = empty($_GET ['encrypt_type']) ? '' : trim($_GET ['encrypt_type']);
        $encryptMsg = file_get_contents('php://input');
        $wxData = C("platform_setting");
        $encodingAesKey = $wxData['encodingAesKey'];
        $token = $wxData['token'];
        $appId = $wxData['appId'];
        $Wxcrypt = new WXBizMsgCrypt($token, $encodingAesKey, $appId);
        $postArr = ArrayTool::xml2array($encryptMsg);
        $format = "<xml><ToUserName><![CDATA[toUser]]></ToUserName><Encrypt><![CDATA[%s]]></Encrypt></xml>";
        $fromXml = sprintf($format, $postArr['Encrypt']);
        //第三方收到公众号平台发送的消息
        $msg = '';
        $errCode = $Wxcrypt->decryptMsg($msgSign, $timestamp, $nonce, $fromXml, $msg); // 解密
        if ($errCode == 0) {
            $param = ArrayTool::xml2array($msg);
            switch ($param['InfoType']) {
                case 'component_verify_ticket' :    // 授权凭证
                    $componentVerifyTicket = $param['ComponentVerifyTicket'];
                    S('component_verify_ticket_' . $appId, $componentVerifyTicket);
                    break;
                case 'unauthorized' :               // 取消授权
                    break;
                case 'authorized' :                 // 授权
                    break;
                case 'updateauthorized' :           // 更新授权
                    break;
            }
        }
        exit("success");
    }
 2.获取component_access_token：
 [1]每个令牌是存在有效期（2小时）的，且令牌的调用不是无限制的，请第三方平台做好令牌的管理，在令牌快过期时（比如1小时50分）再进行刷新。所以要对component_access_token做好本地缓存，代码如下：
$wxData = C("setting");
        //1. 取得component_verify_ticket
        $vt = S('component_verify_ticket_' . $wxData['appId']);
        $at = S('component_access_token_' . $wxData['appId']);
        //2. 获取第三方平台component_access_token
        if (empty($at) && !empty($vt)) {
            $url2 = "https://api.weixin.qq.com/cgi-bin/component/api_component_token";
            $post = array();
            $post['component_appid'] = $wxData['appId'];
            $post['component_appsecret'] = $wxData['appSecret'];
            $post['component_verify_ticket'] = $vt;
            $return2 = $this->curlPost($url2, $post);
            if (isset($return2['component_access_token'])) {
                $at = $return2['component_access_token'];
                S('component_access_token_' . $wxData['appId'], $at, 6600); //缓存1小时50分钟 = 6600秒
            } else {
                return false;
            }
        }
 3.获取pre_auth_code（注意这是预授权码，不是授权码）：
$wxData = C('platform_setting');
        $appId = $wxData['appId'];
        $HT = new HttpTool();
        $at = $HT->getComponentAccessToken();
        if ($at) {
            //3.获取预授权码pre_auth_code
            $url3 = "https://api.weixin.qq.com/cgi-bin/component/api_create_preauthcode?component_access_token={$at}";
            $post = array();
            $post['component_appid'] = $appId;
            $return3 = $HT->curlPost($url3, $post);
            if (isset($return3['pre_auth_code'])) {
                $preauthcode = $return3['pre_auth_code'];
                $redirectUrl = C('site_url') . U("User/App/setauth", array('uid' => $uid));
                $weixinUrl = "https://mp.weixin.qq.com/cgi-bin/componentloginpage?component_appid={$appId}&pre_auth_code={$preauthcode}&redirect_uri={$redirectUrl}";
                redirect($weixinUrl);
                exit;
            }
        }
        $this->error("亲, 授权失败了！");
 4.使用授权码换取公众号的接口调用凭据和授权信息：
//1. 使用授权码换取公众号的接口调用凭据和授权信息
        import("@.ORG.HttpTool");
        $HT = new HttpTool();
        $wxData = C('platform_setting');
        $caccessToken = $HT->getComponentAccessToken();
        $url1 = "https://api.weixin.qq.com/cgi-bin/component/api_query_auth?component_access_token={$caccessToken}";
        $post = array();
        $post['component_appid'] = $wxData['appId'];
        $post['authorization_code'] = $authcode;
        $return = $HT->curlPost($url1, $post);
        if (isset($return['authorization_info'])) {
            $authinfo = $return['authorization_info'];
            $authid = $authinfo['authorizer_appid'];
            $accessToken = $authinfo['authorizer_access_token'];
            $refreshToken = $authinfo['authorizer_refresh_token'];
            //$funcInfo = $authinfo['func_info'];
            //2. 获取授权方的公众号帐号基本信息
            $url2 = "https://api.weixin.qq.com/cgi-bin/component/api_get_authorizer_info?component_access_token={$caccessToken}";
            $post = array();
            $post['component_appid'] = $wxData['appId'];
            $post['authorizer_appid'] = $authid;
            $return2 = $HT->curlPost($url2, $post);
            if (isset($return2['authorizer_info'])) {
                $wxinfo = $return2['authorizer_info'];
                $fcinfo = $return2['authorization_info'];
                $Wxuser = M("Wxuser");
                //是否已经存在
                $extFilter = array();
                $wxuser['uid'] = $uid;
                $extFilter['auth_appid'] = $fcinfo['authorizer_appid'];
                $isExt = $Wxuser->where($extFilter)->find();
                $wxuser = array();
                $wxuser['uid'] = $uid;
                $wxuser['token'] = $this->getToken();
                $wxuser['wxid'] = $wxinfo['user_name'];     //原始ID
                $wxuser['wxname'] = $wxinfo['nick_name'];   //昵称
                $wxuser['weixin_type'] = $wxinfo['service_type_info']['id'];  //微信类型 授权方公众号类型，0代表订阅号，1代表由历史老帐号升级后的订阅号，2代表服务号
                $wxuser['weixin'] = $wxinfo['alias'];       //微信号
                $wxuser['headerpic'] = $wxinfo['head_img']; //头像
                $wxuser['bind_type'] = 1;
                $wxuser['auth_appid'] = $fcinfo['authorizer_appid'];
                $wxuser['auth_access_token'] = $accessToken;
                $wxuser['auth_refresh_token'] = $refreshToken;
                $wxuser['auth_functions'] = json_encode($fcinfo['func_info']);
                $wxuser['auth_business_info'] = json_encode($wxinfo['business_info']);
                $wxuser['create_time'] = time();
                if ($isExt) {
                    $sign = $Wxuser->where($extFilter)->save($wxuser);
                } else {
                    $sign = $Wxuser->add($wxuser);
                    if ($sign) {
                        //添加功能模块
                        $this->addfc($wxuser['token']);   
                        //记录公众号数量
                        M('Users')->where(array('id' => $uid))->setInc('wechat_card_num');
                    }
                }
                if ($sign) {
                    redirect(C("site_url") . U('User/Index/index'));
                }
            }
        }
        $this->error("亲，获取授权信息失败！", U('User/Index/index'));
二. 全网发布
代码如下:
/**
     * 公众号消息与事件接收URL
     */
    public function index() {
        $timestamp = empty($_GET['timestamp']) ? '' : trim($_GET['timestamp']);
        $nonce = empty($_GET['nonce']) ? '' : trim($_GET ['nonce']);
        $msgSign = empty($_GET['msg_signature']) ? '' : trim($_GET['msg_signature']);
        $signature = empty($_GET['signature']) ? '' : trim($_GET['signature']);
        $encryptType = empty($_GET['encrypt_type']) ? '' : trim($_GET['encrypt_type']);
        $openid = trim($_GET['openid']);
        import("@.ORG.ArrayUtil");
        import("@.ORG.Weixincrypt.WXBizMsgCrypt");
        $input = file_get_contents('php://input');
        $paramArr = ArrayUtil::xml2array($input);
        //$this->logPrint($paramArr);
        //$this->logPrint($_GET);
        //解密
        $wxData = C("platform_setting");
        $encodingAesKey = $wxData['encodingAesKey'];
        $token = $wxData['token'];
        $appId = $wxData['appId'];
        $Wxcrypt = new WXBizMsgCrypt($token, $encodingAesKey, $appId);
        $format = "<xml><ToUserName><![CDATA[toUser]]></ToUserName><Encrypt><![CDATA[%s]]></Encrypt></xml>";
        $fromXml = sprintf($format, $paramArr['Encrypt']);
        $errCode = $Wxcrypt->decryptMsg($msgSign, $timestamp, $nonce, $fromXml, $toXml); // 解密
        $this->logPrint($toXml);
        if ($errCode == 0) {
            $param = ArrayUtil::xml2array($toXml);
            $keyword = isset($param['Content']) ? trim($param['Content']) : '';
            // 案例1 - 发送事件
            if (isset($param['Event']) && $paramArr['ToUserName'] == 'gh_3c884a361561') {
                $contentStr = $param ['Event'] . 'from_callback';
            }
            // 案例2 - 返回普通文本
            elseif ($keyword == "TESTCOMPONENT_MSG_TYPE_TEXT") {
                $contentStr = "TESTCOMPONENT_MSG_TYPE_TEXT_callback";
            }
            // 案例3 - 返回Api文本信息
            elseif (strpos($keyword, "QUERY_AUTH_CODE:") !== false) {
                import("@.ORG.HttpTool");
                $authcode = str_replace("QUERY_AUTH_CODE:", "", $keyword);
                $contentStr = $authcode . "_from_api";
                $HT = new HttpTool();
                $authDetail = $HT->getAccessTokenByAuthCode($authcode);
                $accessToken = $authDetail['authorizer_access_token'];
                $HT->sendFansText($accessToken, $param['FromUserName'], $contentStr);
                //$tokenInfo = WechatOpenApiLogic::getAuthorizerAccessTokenByAuthCode($ticket);
                //$param ['authorizerAccessToken'] = $tokenInfo ['authorization_info'] ['authorizer_access_token'];
                //self::sendServiceMsg($param['FromUserName'], $param['ToUserName'], 1, $contentStr); // 客服消息接口
                return 1;
            }
            $result = '';
            if (!empty($contentStr)) {
                $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, $param['FromUserName'], $param['ToUserName'], time(), $contentStr);
                if (isset($_GET['encrypt_type']) && $_GET['encrypt_type'] == 'aes') { // 密文传输
                    $wxData = C("platform_setting");
                    $msgCryptObj = new WXBizMsgCrypt($wxData['token'], $wxData['encodingAesKey'], $wxData['appId']);
                    $encryptMsg = '';
                    $msgCryptObj->encryptMsg($result, $_GET['timestamp'], $_GET['nonce'], $encryptMsg);
                    $result = $encryptMsg;
                }
            }
            echo $result;
        }
    }