public Vkontakte(string appId, string clientSecret = null, string apiVersion = null)
{
AccessToken = new AccessToken();
ApiVersion = apiVersion;
_appId = appId;
_clientSecret = clientSecret;
}
/// <summary>
/// <para>Direct auth with login and password.</para>
/// <para>See also: <seealso cref="http://vk.com/pages?oid=-1&p=Прямая_авторизация"/></para>
/// </summary>
/// <param name="login">Login</param>
/// <param name="password">Password</param>
/// <param name="scopeSettings">Scope settings</param>
/// <param name="captchaSid">Captcha sid</param>
/// <param name="captchaKey">Captcha key</param>
/// <returns><see cref="AccessToken"/></returns>
public async Task<AccessToken> Login(string login, string password, VkScopeSettings scopeSettings = VkScopeSettings.CanAccessFriends,
string captchaSid = null, string captchaKey = null)
{
if (string.IsNullOrEmpty(_vkontakte.AppId))
throw new NullReferenceException("App id must be specified.");
if (string.IsNullOrEmpty(_vkontakte.ClientSecret))
throw new NullReferenceException("Client secret must be specified.");
var parameters = new Dictionary<string, string>
{
{"username", login},
{"password", password},
{"grant_type", "password"},
{"scope", ((int) scopeSettings).ToString(CultureInfo.InvariantCulture)}
};
if (!string.IsNullOrEmpty(captchaSid) && !string.IsNullOrEmpty(captchaKey))
{
parameters.Add("captcha_sid", captchaSid);
parameters.Add("captcha_key", captchaKey);
}
parameters.Add("client_id", _vkontakte.AppId);
parameters.Add("client_secret", _vkontakte.ClientSecret);
var request = new VkRequest(new Uri(VkConst.DirectAuthUrl), parameters);
var response = await request.Execute();
if (response["error"] != null)
{
switch (response["error"].Value<string>())
{
case "need_captcha":
throw new VkCaptchaNeededException(response["captcha_sid"].Value<string>(), response["captcha_img"].Value<string>());
case "invalid_client":
throw new VkInvalidClientException();
case "need_validation":
throw new VkNeedValidationException() { RedirectUri = new Uri(response["redirect_uri"].Value<string>()) };
}
return null;
}
var token = new AccessToken();
token.Token = response["access_token"].Value<string>();
token.UserId = response["user_id"].Value<long>();
token.ExpiresIn = response["expires_in"].Value<long>() == 0 ? DateTime.MaxValue : DateTimeExtensions.UnixTimeStampToDateTime(response["expires_in"].Value<long>());
_vkontakte.AccessToken = token;
return token;
}