public static string TryWeappAutoLogin(this IAccessControl ac, JObject data, out string errMsg)
{
errMsg = null;
var app = ac.Context.RequestServices.GetService <IWeChatContainer>().GetApp();
var session = data.GetValue("sessionid", key => SessionContainer.GetSession(key));
if (session == null)
{
// session未建立，通过code登录换取session
var result = WeChatApi.WxLogin(app, data.GetValue("code", ""));
if (result.ErrorCodeValue == 0)
{
// success，成功时更新session
session = SessionContainer.UpdateSession(null, result.openid, result.session_key, result.unionid);
}
else
{
errMsg = result.errmsg;
}
}
if (session != null)
{
// 根据OpenID自动登录
var service = ac.Context.RequestServices.GetService <IUserService>();
var user = service.GetByAuth(app.Id, session.OpenId);
if (user == null)
{
// OpenID对应的用户不存在，解密客户端数据
var cryptedData = data.GetValue("encryptedData", "");
var iv = data.GetValue("iv", "");
var userInfo = EncryptHelper.DecodeUserInfoBySessionId(session.Key, cryptedData, iv);
// 自动创建用户
var mobile = data.GetValue <string>("mobile");
var wechatService = ac.Context.RequestServices.GetService <IWechatService>();
user = wechatService.WeappRegist(app, userInfo, mobile);
}
return($"{user.HashId}-{session.SessionKey}");
}
return(null);
}
public IActionResult WxLogin([FromBody] JObject data)
{
SessionBag sessionBag = null;
var sessionId = data.GetValue("sessionid", "");
if (sessionId.HasValue())
{
sessionBag = SessionContainer.GetSession(sessionId);
}
string message = null;
if (sessionBag == null)
{
var code = data.GetValue("code", "");
var result = WeChatApi.WxLogin(app, code);
if (result.ErrorCodeValue == 0)
{
sessionBag = SessionContainer.UpdateSession(null, result.openid, result.session_key, result.unionid);
}
else
{
message = result.errmsg;
}
}
else
{
var obj = AppCtx.Session.ExecuteScalar(
new RequestContext("wx", "exec_wx_login")
.SetParam(new
{
appid = app.Id,
authtype = "wechat",
authid = sessionBag.OpenId
})
);
if (obj == null)
{
var cryptedData = data.GetValue("encryptedData", "");
var iv = data.GetValue("iv", "");
var decodedUserInfo = EncryptHelper.DecodeUserInfoBySessionId(sessionBag.Key, cryptedData, iv);
obj = AppCtx.Session.ExecuteScalar(
new RequestContext("wx", "exec_wx_regist")
.SetParam(new
{
newid = App.IdWorker.NextId(),
nickname = decodedUserInfo.nickName,
photo = decodedUserInfo.avatarUrl,
province = decodedUserInfo.province,
city = decodedUserInfo.city,
country = decodedUserInfo.country,
appid = app.Id,
authtype = "wechat",
authid = decodedUserInfo.openId,
unionid = decodedUserInfo.unionId
})
);
}
return(Json(new
{
success = true,
token = $"{sessionBag.Key}",
message = "ok"
}));
}
return(Json(new
{
success = false,
message
}));
}
