/// <summary>
/// 通过code获取用户拉取微信授权登录信息 以上两步可以合为一步 方便调用 但是返回errcode和系统自定义的不同步
/// </summary>
/// <param name="code"></param>
/// <returns></returns>
public async Task <AuthUserInfoModel> GetUserInfoAsync(string providerName, string code)
{
var authLoginProviderModel = this.Providers.FirstOrDefault(p => p.ProviderName == providerName);
if (authLoginProviderModel == null)
{
throw new Exception("未知的授权登录方式:" + providerName);
}
AuthAccessTokenModel tokenModel = await this.GetAccessTokenAsync(authLoginProviderModel, code);
if (tokenModel.errcode == 0)
{
var authUserInfo = await this.GetUserInfoByAccessTokenAsync(tokenModel.access_token, tokenModel.openid);
return(authUserInfo);
}
else if (tokenModel.errcode == 40163 || tokenModel.errcode == 40029)
{
tokenModel.errmsg = "code已被使用或者无效";
throw new Exception(new { tokenModel.errcode, tokenModel.errmsg }.ToJson());
}
else
{
throw new Exception(new { tokenModel.errcode, tokenModel.errmsg }.ToJson());
}
}
/// <summary>
/// 获取授权登录的AccessToken 开发步骤 1.验证服务器是有有效 2.获取code 这两部直接在控制器或者api里调用 3.直接调用GetUserInfo
/// </summary>
/// <param name="providerInfo"></param>
/// <param name="code"></param>
/// <param name="grant_type"></param>
/// <returns></returns>
public async Task <AuthAccessTokenModel> GetAccessTokenAsync(AuthLoginProviderModel providerInfo, string code, string grant_type = "authorization_code")
{
string url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type={3}".FormatWith(providerInfo.AppId, providerInfo.AppSecret, code, grant_type);
string resJson = await WebHelper.HttpGetAsync(url);
AuthAccessTokenModel tokenModel = resJson.ToObject <AuthAccessTokenModel>();
return(tokenModel);
}
