ASP.NET MVC应用程序中支持用户使用腾讯QQ和微信以及新浪微博的第三方登录
什么是第三方授权登录,就是一些大家都会有的帐号如QQ、微信、淘宝、微博等账户。通过那些巨头公司提供的api直接实现登录。
当然,我们是不可能得到你的用户名和密码的。不了解的人,可能会存在这个疑虑。我们可以通过第三方授权登录得到如昵称、性别、注册地址、年龄、头像等基本信息。当然,我们也可以得到你账户因为的唯一编码,就是OAuthId。什么是OAuth技术?大家自行了解,这里就不细讲了。
准备资料:
各平台相关授权appid以及appkey(新浪为App Secret)
申请地址:
新浪
申请入口 http://open.weibo.com/connect
开发文档 http://open.weibo.com/wiki/%E7%BD%91%E7%AB%99%E6%8E%A5%E5%85%A5
腾讯QQ
申请入口:http://connect.qq.com/
开发文档 http://wiki.connect.qq.com/
微信
申请入口https://open.weixin.qq.com/
开发文档 https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&lang=zh_CN
以QQ为例:
从以上文档中可以得知,获得openId以及QQ获得用户信息需要三步,第一步,封装请求链接,然后服务的返回浏览器302跳转至微信或QQ等用户授权窗口
public ActionResult QQLogin(string returnUrl) { AuthenticationScope scope=new AuthenticationScope(){ State=Guid.NewGuid().ToString().Replace("-", ""), Scope="get_user_info" }; if (!string.IsNullOrEmpty(returnUrl)) { Session["returnUrl"] = returnUrl; } Session["requeststate"] = scope.State; string url=_tencentHandler.GetAuthorizationUrl(scope); return Redirect(url); }
public override string GetAuthorizationUrl(AuthenticationScope scope) { string url = string.Empty; if (string.IsNullOrEmpty(scope.Scope)) { url = string.Format("{0}/oauth2.0/authorize?response_type=code&client_id={1}&redirect_uri={2}&state={3}", _options.AuthorizeUrl, _options.AppId, string.Concat(_options.Host, _options.Callback), scope.State); } else { url = string.Format("{0}/oauth2.0/authorize?response_type=code&client_id={1}&redirect_uri={2}&state={3}&scope={4}", _options.AuthorizeUrl, _options.AppId, Uri.EscapeDataString(string.Concat(_options.Host, _options.Callback)), scope.State, scope.Scope); } return url; }
成功后浏览器会跳转至
redirect_uri传递的链接窗口即QQOAuthController下面的CallBack
public ActionResult CallBack()
{
var verifier = Request.Params["code"];
string state = Session["requeststate"].ToString();
QQAuthenticationTicket ticket = new QQAuthenticationTicket()
{
Code=verifier,
Tag = "Tencent.QQ"
};
ticket = _tencentHandler.PreAuthorization(ticket);
ticket = _tencentHandler.AuthenticateCore(ticket);
UserClaim userClaim = getUserClaimByOpenIdOrUnionId(ticket.OpenId, "", ticket.Tag);
if (userClaim != null)
{
FormsAuthentication.SetAuthCookie(userClaim.User.UserName, true);
if (Session["returnUrl"] != null && string.IsNullOrEmpty(Session["returnUrl"].ToString()))
{
return Redirect(Session["returnUrl"].ToString());
}
return RedirectToAction("Index", "Home");
}
SocialUser user = _tencentHandler.GetUserInfo(ticket);
Session["social.current"] = user;
return RedirectToAction("social", "members");
}
这方法的主要作用是依据返回的code,与Authorization Server即(QQ或者微博)进行授权认证,获取token,依据token获取openId以及微信的unionId等张华信息
public override QQAuthenticationTicket PreAuthorization(QQAuthenticationTicket ticket) { string tokenEndpoint = string.Concat(_options.AuthorizeUrl, "/oauth2.0/token?grant_type=authorization_code&client_id={0}&client_secret={1}&code={2}&redirect_uri={3}"); var url = string.Format( tokenEndpoint, Uri.EscapeDataString(_options.AppId), Uri.EscapeDataString(_options.AppSecret), Uri.EscapeDataString(ticket.Code), Uri.EscapeDataString(string.Concat(_options.Host, _options.Callback))); string tokenResponse = _httpClient.GetStringAsync(url).Result.ToString(); if (tokenResponse.IndexOf('&') > 0) { var parameters = tokenResponse.Split('&'); foreach (var parameter in parameters) { var accessTokens = parameter.Split('='); if (accessTokens[0] == "access_token") { ticket.AccessToken = accessTokens[1]; } else if (accessTokens[0] == "refresh_token") { ticket.RefreshToken = accessTokens[1]; } } } return ticket; }
public override QQAuthenticationTicket AuthenticateCore(QQAuthenticationTicket ticket) { string tokenEndpoint = string.Concat(_options.AuthorizeUrl, "/oauth2.0/me?access_token={0}"); var url = string.Format( tokenEndpoint,ticket.AccessToken); string tokenResponse = _httpClient.GetStringAsync(url).Result.ToString(); string strJson = tokenResponse.Replace("callback(", "").Replace(");", ""); var payload = JsonHelper.DeserializeObject<Callback>(strJson); ticket.OpenId=payload.openid; return ticket; }
执行到这里时应该已经获取到openId以及token等相关信息,在自身服务器的用户管理中查找这个账户的绑定记录,如果有相关信息依据取出的相关信息进行用户授权写入cookie或者其他操作,如无调用Authorization Server的相关接口获取相关信息,用QQ的昵称头像,新浪微博貌似无法获取相关信息
protected UserClaim getUserClaimByOpenIdOrUnionId(string openId, string unionId, string tag) { UserClaim claim = MembershipService.GetExtendSocialByOpenId(openId, tag); if (claim != null) { return claim; } return MembershipService.GetExtentSocialByUnionId(unionId, tag); }
UserClaim为第三方账户的相关信息类
public class UserClaim { /// <summary> /// 用户Id /// </summary> public int Id { get; set; } /// <summary> /// 用户Id /// </summary> public int UserId { get; set; } /// <summary> /// 用户认证类型 /// </summary> public string Tag { get; set; } /// <summary> /// OpenId /// </summary> public string OpenId { get; set; } /// <summary> /// UnionId /// </summary> public string UnionId { get; set; } /// <summary> /// Token /// </summary> public string Token { get; set; } /// <summary> /// RefreshToken /// </summary> public string RefreshKey { get; set; } public virtual MembershipUser User { get; set; } }
其他类似
最后附上相关代码https://github.com/491134648/Farmer.Social