public ActionResult OnLogin(string code)
{
try
{
var jsonResult = SnsApi.JsCode2Json(WxOpenAppId, WxOpenAppSecret, code);
if (jsonResult.errcode == ReturnCode.请求成功)
{
//Session["WxOpenUser"] = jsonResult;//使用Session保存登陆信息（不推荐）
//使用SessionContainer管理登录信息（推荐）
//var unionId = "";
var sessionBag = SessionContainer.UpdateSession(null, jsonResult.openid, jsonResult.session_key, jsonResult.unionid);
var userInfo = _userWeChatInfoServices.Exists(p => p.openid == jsonResult.openid);
if (userInfo == false)
{
var user = new CoreCmsUserWeChatInfo();
user.openid = jsonResult.openid;
user.type = (int)GlobalEnumVars.UserAccountTypes.微信小程序;
user.sessionKey = sessionBag.SessionKey;
user.gender = 1;
user.createTime = DateTime.Now;
var id = _userWeChatInfoServices.Insert(user);
if (id > 0)
{
_userWeChatInfoServices.Update(p => new CoreCmsUserWeChatInfo()
{
userId = id
},
p => p.id == id);
}
}
//注意：生产环境下SessionKey属于敏感信息，不能进行传输！
//return Json(new { success = true, msg = "OK", sessionId = sessionBag.Key, sessionKey = sessionBag.SessionKey, data = jsonResult, sessionBag = sessionBag });
return(Json(new { success = true, msg = "OK", sessionId = sessionBag.Key }));
}
else
{
return(Json(new { success = false, msg = jsonResult.errmsg }));
}
}
catch (Exception ex)
{
return(Json(new { success = false, msg = ex.Message }));
}
}
public IActionResult UserInfoCallback(string code, string state, string returnUrl)
{
if (string.IsNullOrEmpty(code))
{
return(Content("您拒绝了授权！"));
}
if (!state.StartsWith("FromSenparc") || !state.Contains("|") || state.Length != 30)
{
//这里的state其实是会暴露给客户端的，验证能力很弱，这里只是演示一下，
//建议用完之后就清空，将其一次性使用
//实际上可以存任何想传递的数据，比如用户ID，并且需要结合例如下面的Session["OAuthAccessToken"]进行验证
return(Content("验证失败！请从正规途径进入！"));
}
OAuthAccessTokenResult result = null;
//通过，用code换取access_token
try
{
result = OAuthApi.GetAccessToken(appId, appSecret, code);
}
catch (Exception ex)
{
return(Content(ex.Message));
}
if (result.errcode != Senparc.Weixin.ReturnCode.请求成功)
{
return(Content("错误：" + result.errmsg));
}
//下面2个数据也可以自己封装成一个类，储存在数据库中（建议结合缓存）
//如果可以确保安全，可以将access_token存入用户的cookie中，每一个人的access_token是不一样的
HttpContext.Session.SetString("OAuthAccessTokenStartTime", SystemTime.Now.ToString());
HttpContext.Session.SetString("OAuthAccessToken", result.ToJson());
//因为第一步选择的是OAuthScope.snsapi_userinfo，这里可以进一步获取用户详细信息
try
{
OAuthUserInfo userInfo = OAuthApi.GetUserInfo(result.access_token, result.openid);
var weChatUserInfo = _userWeChatInfoServices.QueryByClause(p => p.openid == userInfo.openid);
if (weChatUserInfo == null)
{
weChatUserInfo = new CoreCmsUserWeChatInfo();
weChatUserInfo.type = (int)GlobalEnumVars.UserAccountTypes.微信公众号;
weChatUserInfo.openid = userInfo.openid;
weChatUserInfo.sessionKey = result.access_token;
weChatUserInfo.unionId = userInfo.unionid;
weChatUserInfo.avatar = userInfo.headimgurl;
weChatUserInfo.nickName = userInfo.nickname;
weChatUserInfo.gender = userInfo.sex;
weChatUserInfo.language = "";
weChatUserInfo.city = userInfo.city;
weChatUserInfo.province = userInfo.province;
weChatUserInfo.country = userInfo.country;
weChatUserInfo.mobile = "";
weChatUserInfo.createTime = DateTime.Now;
var id = _userWeChatInfoServices.Insert(weChatUserInfo);
if (id > 0)
{
weChatUserInfo.id = id;
_userWeChatInfoServices.Update(p => new CoreCmsUserWeChatInfo()
{
userId = id
}, p => p.id == id);
}
}
else
{
if (weChatUserInfo.country != userInfo.country || weChatUserInfo.province != userInfo.province || weChatUserInfo.nickName != userInfo.nickname || weChatUserInfo.avatar != userInfo.headimgurl || weChatUserInfo.unionId != userInfo.unionid || weChatUserInfo.gender != userInfo.sex || weChatUserInfo.city != userInfo.city)
{
weChatUserInfo.city = userInfo.city;
weChatUserInfo.country = userInfo.country;
weChatUserInfo.province = userInfo.province;
weChatUserInfo.nickName = userInfo.nickname;
weChatUserInfo.gender = userInfo.sex;
weChatUserInfo.avatar = userInfo.headimgurl;
weChatUserInfo.unionId = userInfo.unionid;
//weChatUserInfo.remark = bkurl;
_userWeChatInfoServices.Update(weChatUserInfo);
}
}
//缓存信息
Response.Cookies.Append(GlobalConstVars.CookieOpenId, result.openid);
HttpContext.Session.SetString(GlobalConstVars.SessionOpenId, result.openid);//进行登录
if (!string.IsNullOrEmpty(returnUrl))
{
return(Redirect(returnUrl));
}
return(View(userInfo));
}
catch (ErrorJsonResultException ex)
{
return(Content(ex.Message));
}
}
public async Task <IActionResult> DecodeEncryptedData(string type, string sessionId, string encryptedData, string iv)
{
DecodeEntityBase decodedEntity = null;
CoreCmsUserWeChatInfo userInfo = null;
try
{
switch (type.ToUpper())
{
case "USERINFO": //wx.getUserInfo()
decodedEntity = EncryptHelper.DecodeUserInfoBySessionId(sessionId, encryptedData, iv);
break;
default:
break;
}
}
catch (Exception ex)
{
WeixinTrace.SendCustomLog("EncryptHelper.DecodeUserInfoBySessionId 方法出错",
$@"sessionId: {sessionId}encryptedData: {encryptedData}iv: {iv}sessionKey: { (await SessionContainer.CheckRegisteredAsync(sessionId)
? (await SessionContainer.GetSessionAsync(sessionId)).SessionKey
: "未保存sessionId")}异常信息：{ex.ToString()}");
}
//检验水印
var checkWatermark = false;
if (decodedEntity != null)
{
checkWatermark = decodedEntity.CheckWatermark(WxOpenAppId);
//保存用户信息（可选）
if (checkWatermark && decodedEntity is DecodedUserInfo decodedUserInfo)
{
var sessionBag = await SessionContainer.GetSessionAsync(sessionId);
if (sessionBag != null)
{
await SessionContainer.AddDecodedUserInfoAsync(sessionBag, decodedUserInfo);
}
//更新数据库讯息
userInfo = _userWeChatInfoServices.QueryByClause(p => p.openid == decodedUserInfo.openId);
if (userInfo == null)
{
userInfo = new CoreCmsUserWeChatInfo();
userInfo.type = (int)GlobalEnumVars.UserAccountTypes.微信小程序;
userInfo.openid = decodedUserInfo.openId;
userInfo.sessionKey = sessionBag.SessionKey;
userInfo.unionId = decodedUserInfo.unionId;
userInfo.avatar = decodedUserInfo.avatarUrl;
userInfo.nickName = decodedUserInfo.nickName;
userInfo.gender = decodedUserInfo.gender;
userInfo.language = "";
userInfo.city = decodedUserInfo.city;
userInfo.province = decodedUserInfo.province;
userInfo.country = decodedUserInfo.country;
userInfo.mobile = "";
userInfo.createTime = DateTime.Now;
var id = _userWeChatInfoServices.Insert(userInfo);
if (id > 0)
{
userInfo.id = id;
_userWeChatInfoServices.Update(p => new CoreCmsUserWeChatInfo()
{
userId = id
}, p => p.id == id);
}
}
else
{
userInfo.gender = decodedUserInfo.gender;
userInfo.city = decodedUserInfo.city;
userInfo.avatar = decodedUserInfo.avatarUrl;
userInfo.country = decodedUserInfo.country;
userInfo.nickName = decodedUserInfo.nickName;
userInfo.province = decodedUserInfo.province;
userInfo.unionId = decodedUserInfo.unionId;
userInfo.gender = decodedUserInfo.gender;
_userWeChatInfoServices.Update(userInfo);
}
}
}
//注意：此处仅为演示，敏感信息请勿传递到客户端！
return(Json(new
{
success = checkWatermark,
userInfo = userInfo,
msg = string.Format("水印验证：{0}",
checkWatermark ? "通过" : "不通过")
}));
}