/// <summary>
/// 刷新接口凭据
/// </summary>
/// <returns></returns>
public static async Task <string> RefreshTokenAsync(AppData appData, string appid, string refreshToken)
{
var token = await GetOpenTokenAsync(appData);
var url = $"https://api.weixin.qq.com/cgi-bin/component/api_authorizer_token?component_access_token={token}";
var content = new
{
component_appid = appData.OpenAppId,
authorizer_appid = appid,
authorizer_refresh_token = refreshToken
};
var sendData = JsonConvert.SerializeObject(content);
var result = await PostAsync(url, sendData);
var jObj = JObject.Parse(result);
var wxToken = new WxToken
{
access_token = jObj["authorizer_access_token"].Value <string>(),
expires_in = jObj["expires_in"].Value <int>(),
GetTime = DateTime.Now
};
SetAuthorizerAccessToken(appid, wxToken);
return(wxToken.access_token);
}
private void button18_Click(object sender, EventArgs e)
{
string str = weChatThread.Wx_GetLoginToken();
WxToken wxToken = JsonConvert.DeserializeObject <WxToken>(str);
txt_loginToken.Text = wxToken.token;
}
/// <summary>
/// 根据授权码获取接口凭据和授权信息
/// </summary>
/// <param name="appId"></param>
/// <param name="code"></param>
/// <returns></returns>
public static async Task <WxAuthInfo> GetAuthTokenAsync(AppData appData, string code)
{
var token = await GetOpenTokenAsync(appData);
var url = $"https://api.weixin.qq.com/cgi-bin/component/api_query_auth?component_access_token={token}";
var content = new
{
component_appid = appData.OpenAppId,
authorization_code = code
};
using (var client = new HttpClient())
using (var body = new StringContent(JsonConvert.SerializeObject(content)))
{
var res = await client.PostAsync(url, body);
var result = await res.Content.ReadAsStringAsync();
var entity = JsonConvert.DeserializeObject <WxAuthInfo>(result);
var wxToken = new WxToken
{
access_token = entity.authorization_info.authorizer_access_token,
expires_in = entity.authorization_info.expires_in,
GetTime = DateTime.Now
};
SetAuthorizerAccessToken(entity.authorization_info.authorizer_appid, wxToken);
return(entity);
}
}
/// <summary>
/// 设置接口凭据
/// </summary>
/// <param name="appId"></param>
/// <param name="token"></param>
private static void SetAuthorizerAccessToken(string appId, WxToken token)
{
if (_authAccessTokenDic.ContainsKey(appId))
{
_authAccessTokenDic[appId] = token;
}
else
{
_authAccessTokenDic.Add(appId, token);
}
}
/// <summary>
/// 获取token,现在已经放入session中，后期放入数据库中
/// </summary>
/// <returns></returns>
public async Task <WxToken> GetAccessToken()
{
var old = new WxToken()
{
access_token = "23_HV3iR9AEgaIBO2d2K7-r7lDXwfIzY5akCSNB8vXpTFETLtCjg8QpxN90_jhqg4VGPfNdOYHAxDcZjLIoKVw4UmnDw-IsBN9YrB33es0Ydh6CWojs5kkn6etbL1Y-sN1Q3YTfll1dNRg4ddMlEKDjAHAWCV",
expires_in = 7200
};
return(old);
// var url = _Url +
// $"cgi-bin/token?grant_type=client_credential&appid={_AppID}&secret={_AppSecret}";
// return await HttpUtil.GetAsync<WxToken>(url);
}
/// <summary>
/// 根据授权码获取接口凭据和授权信息
/// </summary>
/// <param name="code">授权码</param>
/// <param name="token">开放平台访问token</param>
/// <returns></returns>
public static async Task <WxAuthInfo> GetAuthTokenAsync(string code, string token)
{
var url = $"https://api.weixin.qq.com/cgi-bin/component/api_query_auth?component_access_token={token}";
var content = new
{
component_appid = OpenAppId,
authorization_code = code
};
var result = await RequestAsync(url, content);
var entity = JsonConvert.DeserializeObject <WxAuthInfo>(result);
var wxToken = new WxToken
{
access_token = entity.authorization_info.authorizer_access_token,
expires_in = entity.authorization_info.expires_in,
GetTime = DateTime.Now
};
return(entity);
}
/// <summary>
/// 获取第三方平台component_access_token
/// </summary>
/// <returns></returns>
public static async Task <string> GetOpenTokenAsync(AppData appData)
{
if (_openToken != null)
{
var second = (DateTime.Now - _openToken.GetTime.Value).TotalSeconds;
// 如果Token没有过期，则直接返回
if (second < _openToken.expires_in - 360)
{
return(_openToken.access_token);
}
}
var url = "https://api.weixin.qq.com/cgi-bin/component/api_component_token";
var content = new
{
component_appid = appData.OpenAppId,
component_appsecret = appData.OpenSecret,
component_verify_ticket = OpenTicket
};
using (var client = new HttpClient())
using (var body = new StringContent(JsonConvert.SerializeObject(content)))
{
var res = await client.PostAsync(url, body);
var result = await res.Content.ReadAsStringAsync();
var jObj = JObject.Parse(result);
var jToken = jObj["component_access_token"];
if (jToken == null)
{
return(null);
}
var token = jObj["component_access_token"].Value <string>();
var expires_in = jObj["expires_in"].Value <int>();
_openToken = new WxToken {
access_token = token, GetTime = DateTime.Now, expires_in = expires_in
};
return(token);
}
}
/// <summary>
/// 刷新开放平台授权访问令牌
/// </summary>
/// <param name="token"></param>
/// <param name="appId"></param>
/// <param name="refreshToken"></param>
/// <returns></returns>
private async Task <string> RefreshTokenAsync(string appId)
{
var token = await GetOpenTokenAsync();
var authInfo = await Context.OpenAuthInfos.FirstOrDefaultAsync(a => a.AppId == appId);
if (authInfo == null)
{
throw new Exception($"公众号未授权");
}
var url = $"https://api.weixin.qq.com/cgi-bin/component/api_authorizer_token?component_access_token={token}";
var content = new
{
component_appid = WxHelper.OpenAppId,
authorizer_appid = appId,
authorizer_refresh_token = authInfo.RefreshToken
};
var result = await UtilHelper.RequestAsync(url, content);
var jObj = JObject.Parse(result);
var wxToken = new WxToken
{
access_token = jObj["authorizer_access_token"].Value <string>(),
expires_in = jObj["expires_in"].Value <int>(),
GetTime = DateTime.Now
};
if (AuthAccessTokenDic.ContainsKey(appId))
{
AuthAccessTokenDic[appId] = wxToken;
}
else
{
AuthAccessTokenDic.Add(appId, wxToken);
}
return(wxToken.access_token);
}
/// <summary>
/// 设置开放平台访问Token
/// </summary>
/// <returns></returns>
private async Task <string> SetOpenTokenAsync()
{
var url = "https://api.weixin.qq.com/cgi-bin/component/api_component_token";
var ticket = await GetOpenTicketAsync();
if (string.IsNullOrEmpty(ticket))
{
throw new ArgumentNullException("component_verify_ticket", "开放平台ticket不能为空，该值每10分钟推送一次");
}
var content = new
{
component_appid = WxHelper.OpenAppId,
component_appsecret = WxHelper.OpenSecret,
component_verify_ticket = await GetOpenTicketAsync()
};
using (var client = new HttpClient())
using (var body = new StringContent(JsonConvert.SerializeObject(content)))
{
var res = await client.PostAsync(url, body);
var result = await res.Content.ReadAsStringAsync();
var jObj = JObject.Parse(result);
var jToken = jObj["component_access_token"];
if (jToken == null)
{
return(null);
}
var token = jObj["component_access_token"].Value <string>();
var expires_in = jObj["expires_in"].Value <int>();
OpenToken = new WxToken {
access_token = token, GetTime = DateTime.Now, expires_in = expires_in
};
return(token);
}
}
