/// <summary>
/// Obtains an access token given an authorization code and callback URL.
/// </summary>
/// <param name="returnUrl">
/// The return url.
/// </param>
/// <param name="authorizationCode">
/// The authorization code.
/// </param>
/// <returns>
/// The access token.
/// </returns>
protected override string QueryAccessToken(Uri returnUrl, string authorizationCode)
{
var builder = new UriBuilder(TokenEndpoint);
builder.AppendQueryArgument("client_id", _appId);
builder.AppendQueryArgument("redirect_uri", returnUrl.AbsoluteUri);
builder.AppendQueryArgument("client_secret", _appSecret);
builder.AppendQueryArgument("code", authorizationCode);
using (var client = new ExtendedWebClient(_userAgent))
{
var data = client.DownloadString(builder.Uri);
if (string.IsNullOrEmpty(data))
{
return null;
}
var parsedQueryString = HttpUtility.ParseQueryString(data);
return parsedQueryString["access_token"];
}
}
/// <summary>
/// The get user data.
/// </summary>
/// <param name="accessToken">
/// The access token.
/// </param>
/// <returns>A dictionary of profile data.</returns>
protected override IDictionary<string, string> GetUserData(string accessToken)
{
using (var client = new ExtendedWebClient(_userAgent))
{
var data = client.DownloadString(UserEndpoint + "?access_token=" + accessToken);
return JsonConvert.DeserializeObject<Dictionary<string, string>>(data);
}
}