/// <summary>
/// 获取用户个人信息（UnionID机制）
/// </summary>
/// <param name="accessToken"></param>
/// <returns></returns>
public async Task <JsonDocument> GetUserInfo(HttpClient backchannel, string userInformationEndpoint, string accessToken, string openid, CancellationToken cancellationToken, WeixinAuthLanguageCodes languageCode = WeixinAuthLanguageCodes.zh_CN)
{
var tokenRequestParameters = new Dictionary <string, string>()
{
["access_token"] = accessToken,
["openid"] = openid,
["lang"] = languageCode.ToString()
};
var requestUrl = QueryHelpers.AddQueryString(userInformationEndpoint, tokenRequestParameters);
var response = await backchannel.GetAsync(requestUrl, cancellationToken);
if (!response.IsSuccessStatusCode)
{
var error = "OAuth userinformation endpoint failure: " + await Display(response);
Logger.LogError(error);
return(null);
}
var content = await response.Content.ReadAsStringAsync();
//{
// "openid":"OPENID",
// "nickname":"NICKNAME",
// "sex":1,
// "province":"PROVINCE",
// "city":"CITY",
// "country":"COUNTRY",
// "headimgurl": "http://wx.qlogo.cn/mmopen/g3MonUZtNHkdmzicIlibx6iaFqAc56vxLSUfpb6n5WKSYVY0ChQKkiaJSgQ1dZuTOgvLLrhJbERQQ4eMsv84eavHiaiceqxibJxCfHe/0",
// "privilege":[
// "PRIVILEGE1",
// "PRIVILEGE2"
// ],
// "unionid": " o6_bmasdasdsad6_2sgVt7hMZOPfL"
//}
var payload = JsonDocument.Parse(content);
int errorCode = WeixinAuthHandlerHelper.GetErrorCode(payload);
if (errorCode != 0)
{
var error = "OAuth user information endpoint failure: " + await Display(response);
Logger.LogError(error);
return(null);
}
return(payload);
}
/// <summary>
/// 通过code换取网页授权access_token。通过code换取的是一个特殊的网页授权access_token,与基础支持中的access_token（该access_token用于调用其他接口）不同。
/// </summary>
/// <param name="refreshToken">refresh_token拥有较长的有效期（30天），当refresh_token失效的后，需要用户重新授权，所以，请开发者在refresh_token即将过期时（如第29天时），进行定时的自动刷新并保存好它。</param>
/// <remarks>尤其注意：由于公众号的secret和获取到的access_token安全级别都非常高，必须只保存在服务器，不允许传给客户端。后续刷新access_token、通过access_token获取用户信息等步骤，也必须从服务器发起。</remarks>
/// <returns></returns>
public async Task <OAuthTokenResponse> GetToken(HttpClient backchannel, string tokenEndpoint, string appId, string appSecret, string code, CancellationToken cancellationToken)
{
var tokenRequestParameters = new Dictionary <string, string>()
{
["appid"] = appId,
["secret"] = appSecret,
["code"] = code,
["grant_type"] = "authorization_code"
};
var requestUrl = QueryHelpers.AddQueryString(tokenEndpoint, tokenRequestParameters);
var response = await backchannel.GetAsync(requestUrl, cancellationToken);
if (!response.IsSuccessStatusCode)
{
var error = "OAuth token endpoint failure: " + await Display(response);
Logger.LogError(error);
return(OAuthTokenResponse.Failed(new Exception(error)));
}
var content = await response.Content.ReadAsStringAsync();
// {
// "access_token":"ACCESS_TOKEN",
// "expires_in":7200,
// "refresh_token":"REFRESH_TOKEN",
// "openid":"OPENID",
// "scope":"SCOPE",
// "unionid": "o6_bmasdasdsad6_2sgVt7hMZOPfL"
//}
var payload = JsonDocument.Parse(content);
int errorCode = WeixinAuthHandlerHelper.GetErrorCode(payload);
if (errorCode != 0)
{
var error = "OAuth token endpoint failure: " + await Display(response);
Logger.LogError(error);
return(OAuthTokenResponse.Failed(new Exception(error)));
}
//payload.Add("token_type", "");
return(OAuthTokenResponse.Success(payload));
}