public async Task <Result> SignInWithWeChatAsync(string wechatCode, WeChatAppIdSecret idSecret)
{
if (idSecret.Type == null)
{
throw new ArgumentException($"Unknown {nameof(WeChatAppIdSecret)}.{nameof(WeChatAppIdSecret.Type)}");
}
var wechat = _me.ServiceProvider.GetRequiredService <WeChatService>().User();
var accessToken = await wechat.GetUserAccessTokenAsync(wechatCode, idSecret);
if (!accessToken.Ok || accessToken.Data == null)
{
return(new Failure(LoginResult.FailureWeChatRequestToken.ToLabel()));
}
var user = _db.Users
.AsNoTracking()
.Where(x => x.WeChat != null && x.WeChat.OpenIds.Any(y => y.OpenIdValue == accessToken.Data.OpenId))
.SingleOrDefault();
//用户还不存在，即该微信账号第一次登录，进一步读取用户资料完成自动注册
if (user == null)
{
var wechatUser = await wechat.GetUserInfoAsync(accessToken.Data);
if (!wechatUser.Ok || wechatUser.Data == null)
{
return(new Failure(LoginResult.FailureWeChatRequestUserInfo.ToLabel()));
}
//寻找用户，看该微信账号是否有相同UnionId
if (!string.IsNullOrEmpty(wechatUser.Data.UnionId))
{
user = _db.Users
.Include(x => x.WeChat)
.ThenInclude(x => x !.OpenIds)
.Where(x => x.WeChat != null)
.Where(x => x.WeChat !.UnionId == wechatUser.Data.UnionId)
.SingleOrDefault();
}
//如果仍然没找到已注册用户，判断用户当前是否已经通过其它方式登录，是的话直接使用该用户身份
if (user == null && _me.IsAuthenticated)
{
user = _db.Users
.Include(x => x.WeChat)
.ThenInclude(x => x !.OpenIds)
.Where(x => x.Id == _me.Id)
.SingleOrDefault();
}
//如果都没有，就新建用户
if (user == null)
{
user = new User();
_db.Users.Add(user);
}
else
{
//用户记录是异常状态时，阻止获得登录身份
if (user.Status == RowStatus.Suspended)
{
return(await AddLoginRecordAsync(LoginResult.RejectedAccountSuspended, "WeChatApi", user.Id));
}
if (user.Status == RowStatus.Deleted)
{
return(await AddLoginRecordAsync(LoginResult.RejectedAccountDeleted, "WeChatApi", user.Id));
}
if (user.Status != RowStatus.Active)
{
return(await AddLoginRecordAsync(LoginResult.RejectedAccountInactive, "WeChatApi", user.Id));
}
}
//更新 User 表字段
user.DisplayName ??= wechatUser.Data.NickName.Left(36);
user.PhotoUrl ??= wechatUser.Data.HeadImageUrl;
//更新 UserWeChat 表字段
user.WeChat ??= new UserWeChat();
if (!user.WeChat.OpenIds.Any(x => x.OpenIdValue == wechatUser.Data.OpenId))
{
user.WeChat.OpenIds.Add(new UserWeChatOpenId {
OpenIdType = (WeChatField)(int)idSecret.Type,
OpenIdValue = wechatUser.Data.OpenId
});
}
user.WeChat.UnionId = wechatUser.Data.UnionId;
user.WeChat.NickName = wechatUser.Data.NickName.Left(36) !;
user.WeChat.Sex = wechatUser.Data.Sex;
user.WeChat.HeadImageUrl = wechatUser.Data.HeadImageUrl;
user.WeChat.Province = wechatUser.Data.Province?.Left(24);
user.WeChat.City = wechatUser.Data.City?.Left(24);
user.WeChat.Country = wechatUser.Data.Country?.Left(24);
await _db.Normalize().SaveChangesAsync();
}
_me.Id = user.Id;
_me.DisplayName = user.DisplayName ?? $"User#{user.Id}";
_me.IdentityManager?.SaveIdentity(_me);
return(await AddLoginRecordAsync(LoginResult.Success, "WeChatApi", user.Id));
}
public async Task <Result <WeChatUserAccessToken> > RefreshUserAccessTokenAsync(string refreshToken, WeChatAppIdSecret overrideIdSecret)
{
overrideIdSecret.NotNull();
var url = $"https://api.weixin.qq.com/sns/oauth2/refresh_token" +
$"?appid={overrideIdSecret.AppId}" +
$"&refresh_token={refreshToken}" +
$"&grant_type=refresh_token";
return(await GetUserAccessTokenFromResolvedUrlAsync(url));
}
public async Task <Result <WeChatUserAccessToken> > GetUserAccessTokenAsync(string code, WeChatAppIdSecret overrideIdSecret)
{
overrideIdSecret.NotNull();
var url = $"https://api.weixin.qq.com/sns/oauth2/access_token" +
$"?appid={overrideIdSecret.AppId}" +
$"&secret={overrideIdSecret.AppSecret}" +
$"&code={code}" +
$"&grant_type=authorization_code";
return(await GetUserAccessTokenFromResolvedUrlAsync(url));
}
public async Task <Result> SignInWithWeChat(string wechatCode, WeChatAppIdSecret idSecret)
{
if (_wechat == null)
{
throw new Exception($"缺少微信服务组件 {typeof(WeChatService).Assembly.GetName()}");
}
if (idSecret.Type == null)
{
throw new ArgumentException($"未指明 {nameof(WeChatAppIdSecret)}.{nameof(WeChatAppIdSecret.Type)}");
}
var wechatUserService = _wechat.UserService();
var accessToken = wechatUserService.GetUserAccessToken(wechatCode, idSecret);
if (accessToken == null)
{
return(new Failure(LoginResult.FailureWeChatRequestToken.ToLabel()));
}
var wechatUser = wechatUserService.GetUserInfo(accessToken);
if (wechatUser == null)
{
return(new Failure(LoginResult.FailureWeChatRequestUserInfo.ToLabel()));
}
//寻找用户，看该微信账号是否已经注册过
var user = _db.Users
.Include(x => x.WeChat)
.Where(x => x.WeChat != null)
.Where(x => x.WeChat !.UnionId == wechatUser.UnionId || x.WeChat.OpenIds.Any(y => y.OpenIdValue == wechatUser.OpenId))
.SingleOrDefault();
//如果通过传入微信信息没找到已注册用户，判断用户当前是否已经通过其它方式登录，是的话直接使用该用户身份
if (user == null && _me.IsAuthenticated)
{
user = _db.Users
.Where(x => x.Id == _me.Id)
.SingleOrDefault();
}
//如果都没有，就新建用户
if (user == null)
{
user = new User();
_db.Users.Add(user);
}
else
{
//用户记录是异常状态时，阻止获得登录身份
if (user.Status == RowStatus.Suspended)
{
return(await AddLoginRecord(LoginResult.RejectedAccountSuspended, "WeChatApi", user.Id));
}
if (user.Status == RowStatus.DeletedByAdmin || user.Status == RowStatus.DeletedByUser)
{
return(await AddLoginRecord(LoginResult.RejectedAccountDeleted, "WeChatApi", user.Id));
}
if (user.Status != RowStatus.Active)
{
return(await AddLoginRecord(LoginResult.RejectedAccountInactive, "WeChatApi", user.Id));
}
}
//更新 User 表字段
user.DisplayName ??= wechatUser.NickName.Left(36);
user.PhotoUrl ??= wechatUser.HeadImageUrl;
//更新 UserWeChat 表字段
user.WeChat ??= new UserWeChat();
if (!user.WeChat.OpenIds.Any(x => x.OpenIdValue == wechatUser.OpenId))
{
user.WeChat.OpenIds.Add(new UserWeChatOpenId {
OpenIdType = (WeChatOpenIdType)(int)idSecret.Type,
OpenIdValue = wechatUser.OpenId
});
}
user.WeChat.UnionId = wechatUser.UnionId;
user.WeChat.NickName = wechatUser.NickName.Left(36) !;
user.WeChat.Sex = wechatUser.Sex;
user.WeChat.HeadImageUrl = wechatUser.HeadImageUrl;
user.WeChat.Province = wechatUser.Province?.Left(24);
user.WeChat.City = wechatUser.City?.Left(24);
user.WeChat.Country = wechatUser.Country?.Left(24);
await _db.Normalize().SaveChangesAsync();
_me.Id = user.Id;
_me.DisplayName = user.DisplayName !;
_me.IdentityManager.SaveIdentity(_me);
return(await AddLoginRecord(LoginResult.Success, "WeChatApi", user.Id));
}
