qcminecraft/Carbon-Forum-F

<?php
require(__DIR__ . '/URL.class.php');
class Oauth
{
    const VERSION = "2.0";
    const GET_AUTH_CODE_URL = "https://open.weixin.qq.com/connect/qrconnect";
    const GET_ACCESS_TOKEN_URL = "https://api.weixin.qq.com/sns/oauth2/access_token";
    const GET_OPENID_URL = "https://api.weixin.qq.com/sns/oauth2/refresh_token";
    const GET_USER_INFO_URL = "https://api.weixin.qq.com/sns/userinfo";
    
    private $AppKey;
    public $AccessToken = null;
    public $OpenID = null;
    public $NickName = null;
    public $AvatarURL = null;
    
    function __construct($AppKey)
    {
        $this->AppKey = $AppKey;
        //$this->GetAccessToken();
        //$this->GetOpenID();
    }
    
    
    public static function AuthorizeURL($WebsitePath, $AppID, $AppKey, $SendState)
    {
        // https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&id=open1419316505&token=&lang=zh_CN
        $RequestParameter = array(
            'response_type' => 'code',
            'appid' => $AppKey,
            'redirect_uri' => $WebsitePath . '/oauth-' . $AppID,
            'state' => $SendState,
            'scope' => 'snsapi_login'
        );
        return self::GET_AUTH_CODE_URL . '?' . http_build_query($RequestParameter);
    }
    
    
    public function GetAccessToken($WebsitePath, $AppID, $AppSecret, $Code)
    {
        
        // 请求参数列表
        $RequestParameter = array(
            "grant_type" => "authorization_code",
            "appid" => $this->AppKey,
            "secret" => $AppSecret,
            "code" => $Code
        );
        // 构造请求access_token的url
        $Response         = URL::Get(self::GET_ACCESS_TOKEN_URL . '?' . http_build_query($RequestParameter));
        $Params           = json_decode($Response, true);
        // 检测错误是否发生
        if ($Params === false || empty($Params['access_token'])) {
            //记录错误，这里没写Error Log模块
            $this->AccessToken = null;
            $this->OpenID = null;
            return false;
        } else {
            $this->AccessToken = $Params["access_token"];
            $this->OpenID = $Params["openid"];
            return true;
        }
    }
    
    
    public function GetOpenID()
    {
        // 此方法画蛇添足，实际上在获取access_token时已经得到了OpenID
        // 这里为了封装一致性再请求一次
        // 本质是微信API设计有缺陷
        return $this->OpenID;
    }
    
    
    public function GetUserInfo()
    {
        // 请求参数列表
        $RequestParameter = array(
            "access_token" => $this->AccessToken,
            "openid" => $this->OpenID,
            "lang" => "zh-CN"
        );
        
        $GraphURL = self::GET_USER_INFO_URL . '?' . http_build_query($RequestParameter);
        $Response = URL::Get($GraphURL);
        
        // http://wiki.connect.qq.com/get_user_info
        $UserInfo = json_decode($Response, true);
        if ($UserInfo === false || empty($UserInfo['openid'])) {
            //记录错误，这里没写Error Log模块
            return false;
        } else {
            // 储存昵称
            $this->NickName  = $UserInfo['nickname'];
            // 储存头像
            $this->AvatarURL = $UserInfo['headimgurl'];
            return true;
        }
    }
}