/// <summary>
/// The async implementation of <see cref="GetRequestToken"/>
/// </summary>
public static void GetRequestTokenAsync(AsyncCallback<OAuthRequestToken> callback)
{
var requester = new TokenObtainRequest(APIUri.RequestToken);
requester.RequestAsync(delegate(AsyncCallResult<string> result)
{
var asyncResult = new AsyncCallResult<OAuthRequestToken>();
asyncResult.Success = result.Success;
asyncResult.Exception = result.Exception;
if (result.Success)
{
// Processes response.
var match = Regex.Match(result.Data, Constants.RetrieveRequestTokenPattern, RegexOptions.IgnoreCase);
if (!match.Success)
throw new AMicroblogException(LocalErrorCode.UnknowError, "Failed to retrieve request token from the web response.");
var requestToken = match.Groups[1].Value;
var requestTokenSecret = match.Groups[2].Value;
asyncResult.Data = new OAuthRequestToken() { Token = match.Groups[1].Value, Secret = match.Groups[2].Value };
}
else
callback(asyncResult);
});
}
/// <summary>
/// The async implementation of <see cref="GetAccessToken"/>
/// </summary>
public static void GetAccessTokenAsync(AsyncCallback<OAuthAccessToken> callback, OAuthRequestToken requestToken, string verifier)
{
ValidateArgument(requestToken, "requestToken");
ValidateArgument(requestToken.Token, "requestToken.Token");
ValidateArgument(requestToken.Secret, "requestToken.Secret");
ValidateArgument(verifier, "verifier");
// If the required auth header item is not given (for example: an incorrect name is used.), server will not response.
var requester = new TokenObtainRequest(APIUri.AccessToken);
requester.Params.Add(new ParamPair(Constants.OAuthToken, requestToken.Token));
requester.Params.Add(new ParamPair(Constants.OAuthVerifier, verifier));
requester.Secret = requestToken.Secret;
requester.RequestAsync(delegate(AsyncCallResult<string> result)
{
var asyncResult = new AsyncCallResult<OAuthAccessToken>();
asyncResult.Success = result.Success;
asyncResult.Exception = result.Exception;
if (result.Success)
{
var accessTokenMatch = Regex.Match(result.Data, Constants.RetrieveAccessTokenPattern, RegexOptions.IgnoreCase);
if (!accessTokenMatch.Success)
throw new AMicroblogException(LocalErrorCode.UnknowError, "Failed to retrieve access token.");
var accessToken = accessTokenMatch.Groups[1].Value;
var accessTokenSecret = accessTokenMatch.Groups[2].Value;
var userID = accessTokenMatch.Groups[4].Value;
asyncResult.Data = new OAuthAccessToken() { Token = accessToken, Secret = accessTokenSecret, UserID = userID };
}
else
callback(asyncResult);
});
}