public IHttpActionResult ForceUpdate()
{
var componentSvc = new ComponentTokenService();
var beforeUpdate = JsonConvert.DeserializeObject(JsonConvert.SerializeObject(componentSvc.GetToken()));
var afterUpdate = componentSvc.ForceRefresh();
var result = new { before = beforeUpdate, after = afterUpdate };
return(Ok(result));
}
public ActionResult UserAuth(string code, string state, string appid, string returnUrl, string scope)
{
try
{
if (string.IsNullOrEmpty(appid))
{
return(Content("无效的请求"));
}
if (string.IsNullOrEmpty(returnUrl))
{
return(Content("Error: can't find url parameter <b>returnUrl</b>"));
}
if (returnUrl.Contains("%") == false)
{
returnUrl = HttpUtility.UrlEncode(returnUrl).Replace("+", "%20");
}
//TODO: verify if returnUrl domain is legal or not.
string componentAppId = ConfigurationManager.AppSettings["AppId"];
string wxAuthRedirectUri = ConfigurationManager.AppSettings["UserAuthRedirectUri"] + "?returnUrl=" + returnUrl;
string wxAuthUrlFmt =
"https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope=snsapi_userinfo&state={2}&component_appid={3}#wechat_redirect";
bool silentAuth = !string.IsNullOrEmpty(scope) && scope.ToLower() == "snsapi_base";
//state is null indicates it's first time to get here.
if (string.IsNullOrEmpty(state))
{
//TODO: silent user auth here.
if (silentAuth)
{
wxAuthUrlFmt =
"https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope=snsapi_base&state={2}&component_appid={3}#wechat_redirect";
wxAuthRedirectUri += "&scope=snsapi_base";
}
//throw new Exception("wx based on "+ wxAuthRedirectUri);
//第一次进入，跳转到微信授权页
string wxAuthUrl = string.Format(wxAuthUrlFmt, appid, HttpUtility.UrlEncode(wxAuthRedirectUri).Replace("+", "%20"),
"wxAuth1stStep", componentAppId);
return(Redirect(wxAuthUrl));
}
if (string.IsNullOrEmpty(code))
{
// user reject the auth
return(Content("用户未授权，无法继续。"));
}
var cts = new ComponentTokenService();
//通过code换取access_token
var componentToken = cts.GetToken();
string wxAccessTokenUrlFmt =
"https://api.weixin.qq.com/sns/oauth2/component/access_token?appid={0}&code={1}&grant_type=authorization_code&component_appid={2}&component_access_token={3}";
string wxAccessTokenUrl = string.Format(wxAccessTokenUrlFmt, appid, code, componentAppId,
componentToken.ComponentAccessToken);
string accessTokenJsonStr = string.Empty;
HttpClient client = new HttpClient();
accessTokenJsonStr =
client.GetStringAsync(wxAccessTokenUrl)
.Result; //Senparc.CO2NET.HttpUtility.RequestUtility.HttpGet(wxAccessTokenUrl, null);
var accessTokenJsonObj = JObject.Parse(accessTokenJsonStr);
var accessCode = accessTokenJsonObj.GetValue("access_token");
var openid = accessTokenJsonObj.GetValue("openid");
if (openid == null)
{
//log & retry
string logmsg = "RETRY: \r\n openid is null \r\n Token Url: " + wxAccessTokenUrl + " \r\n Token info \r\n " +
JsonConvert.SerializeObject(componentToken) + " \r\n accessTokenJsonStr \r\n" +
accessTokenJsonStr;
cts.ForceRefresh();
componentToken = cts.GetToken();
wxAccessTokenUrl = string.Format(wxAccessTokenUrlFmt, appid, code, componentAppId,
componentToken.ComponentAccessToken);
logmsg += "\r\n after update the token url is " + wxAccessTokenUrl;
Log(logmsg);
//RETRY：
accessTokenJsonStr =
client.GetStringAsync(wxAccessTokenUrl)
.Result; //Senparc.CO2NET.HttpUtility.RequestUtility.HttpGet(wxAccessTokenUrl, null);
accessTokenJsonObj = JObject.Parse(accessTokenJsonStr);
accessCode = accessTokenJsonObj.GetValue("access_token");
openid = accessTokenJsonObj.GetValue("openid");
}
if (!silentAuth)
{
//获取用户的基本信息
string wxUserInfoUrlFmt =
"https://api.weixin.qq.com/sns/userinfo?access_token={0}&openid={1}&lang=zh_CN";
string wxUserInfoUrl = string.Format(wxUserInfoUrlFmt, accessCode, openid);
string userInfoJsonStr = client.GetStringAsync(wxUserInfoUrl).Result; //Senparc.CO2NET.HttpUtility.RequestUtility.HttpGet(wxUserInfoUrl, null);
var userInfoJsonObj = JObject.Parse(userInfoJsonStr);
string openIdStr = openid.ToString();
string decodeReturnUrl = HttpUtility.UrlDecode(returnUrl);
//append infos
string redirectUrl = appendUserInfo(decodeReturnUrl, userInfoJsonObj);
return(Redirect(redirectUrl));
}
else
{
string decodeReturnUrl = HttpUtility.UrlDecode(returnUrl);
bool alreadyHasUrlParameter = decodeReturnUrl.Contains("?");
if (!alreadyHasUrlParameter)
{
decodeReturnUrl += "?openid=" + openid;
}
else
{
decodeReturnUrl += "&openid=" + openid;
}
return(Redirect(decodeReturnUrl));
}
}
catch (Exception e)
{
string msg = e.ToString();
Log(msg);
return(Content("请刷新重试"));
}
}
