public async Task <Result <WeChatUserAccessToken> > GetMobilePlatformUserAccessTokenAsync(string code)
{
_options.RequireMobilePlatformSettings();
return(await GetUserAccessTokenAsync(code, new WeChatAppIdSecret {
AppId = _options.MobilePlatformAppId,
AppSecret = _options.MobilePlatformAppSecret
}));
}
public string CreateMobilePlatformAutoLoginUrl(string redirectUrl, string scope = "snsapi_userinfo")
{
_options.RequireMobilePlatformSettings();
return($"https://open.weixin.qq.com/connect/oauth2/authorize" +
$"?appid={_options.MobilePlatformAppId}" +
$"&redirect_uri={HttpUtility.UrlEncode(redirectUrl)}" +
$"&response_type=code" +
$"&scope={scope}" +
$"&state={Crypto.Encrypt(DateTime.Now.ToString("yyyy-M-d H:mm:ss"), iv: _options.MobilePlatformAppId!)}" +
$"#wechat_redirect");
}
public async Task <Result <WeChatGeneralAccessToken> > GetGeneralAccessTokenAsync()
{
_options.RequireMobilePlatformSettings();
return(await _cache.GetOrCreate <Task <Result <WeChatGeneralAccessToken> > >(_options.MobilePlatformAppId + nameof(GetGeneralAccessTokenAsync), async entry => {
var url = _options.GeneralAccessTokenManagedCentral ?? "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential";
url += url.Contains('?') ? '&' : '?';
url += $"appid={_options.MobilePlatformAppId}&secret={_options.MobilePlatformAppSecret}";
try {
var json = await DefaultHttpClient.Instance.GetStringAsync(url);
var d = JsonConvert.DeserializeObject <dynamic>(json);
var ok = d.errcode == null || (int)d.errcode == 0;
if (!ok)
{
entry.SetAbsoluteExpiration(TimeSpan.FromSeconds(1));
return new Failure <WeChatGeneralAccessToken>((int)d.errcode + ": " + d.errmsg);
}
var timeSpan = d.expires_at != null
? ((DateTime)d.expires_at).Subtract(DateTime.Now)
: TimeSpan.FromSeconds((int)d.expires_in);
entry.SetAbsoluteExpiration(timeSpan);
return new Success <WeChatGeneralAccessToken> {
Data = new WeChatGeneralAccessToken {
AccessToken = d.access_token,
Expires = DateTime.Now.Add(timeSpan)
}
};
}
catch (Exception e) {
return new Failure <WeChatGeneralAccessToken>(e.Message);
}
}));
}