public async Task <OAuthAccessToken> GetAccessTokenAsync(OAuthRequestToken requestToken, string verifier, CancellationToken cancelToken)
{
var accessTokenParams = GetOAuthBasicParams();
var headers = accessTokenParams.ToDictionary(kv => kv.Key, kv => kv.Value);
headers.Add(Constants.OAuthToken, requestToken.Token);
headers.Add(Constants.OAuthVerifier, verifier);
var oAuthQuery = ConstructOAuthQueryString(headers, "GET", Settings.AccessTokenUrl, requestToken.Secret);
var url = Settings.AccessTokenUrl + "?" + oAuthQuery;
var request = WebRequest.Create(url);
cancelToken.ThrowIfCancellationRequested();
var result = await request.GetStringAsync(cancelToken);
var accessTokenMatch = Regex.Match(result, Constants.RetrieveAccessTokenPattern, RegexOptions.IgnoreCase);
if (!accessTokenMatch.Success)
{
throw new Exception("Failed to retrieve access token.");
}
var accessToken = accessTokenMatch.Groups[1].Value;
var accessTokenSecret = accessTokenMatch.Groups[2].Value;
var userID = accessTokenMatch.Groups[4].Value;
var oauthAccessToken = new OAuthAccessToken()
{
Token = accessToken, Secret = accessTokenSecret, UserID = userID
};
return(oauthAccessToken);
}
public async Task <string> AuthorizeAsync(string userName, string password, OAuthRequestToken requestToken, CancellationToken cancelToken)
{
if (requestToken == null)
{
throw new Exception("Request token is invalid.");
}
var queryStringParams = new Dictionary <string, string>();
queryStringParams.Add(Constants.OAuthToken, requestToken.Token);
queryStringParams.Add("userId", HttpEncoder.UrlEncode(userName));
queryStringParams.Add("passwd", HttpEncoder.UrlEncode(password));
queryStringParams.Add(Constants.OAuthCallback, "xml");
var authorizeUrl = Settings.AuthorizeUrl + "?";
foreach (var kv in queryStringParams)
{
authorizeUrl += string.Format("{0}={1}&", kv.Key, kv.Value);
}
authorizeUrl = authorizeUrl.TrimEnd('&');
var request = WebRequest.Create(authorizeUrl);
cancelToken.ThrowIfCancellationRequested();
var result = await request.GetStringAsync(cancelToken);
var match = Regex.Match(result, Constants.RetrieveAuthorizationCodePattern, RegexOptions.CultureInvariant);
if (!match.Success)
{
throw new Exception("Invalid user name or password.");
}
var verifier = match.Groups[1].Value;
return(verifier);
}
public async Task<OAuthAccessToken> GetAccessTokenAsync(OAuthRequestToken requestToken, string verifier, CancellationToken cancelToken)
{
var accessTokenParams = GetOAuthBasicParams();
var headers = accessTokenParams.ToDictionary(kv => kv.Key, kv => kv.Value);
headers.Add(Constants.OAuthToken, requestToken.Token);
headers.Add(Constants.OAuthVerifier, verifier);
var oAuthQuery = ConstructOAuthQueryString(headers, "GET", Settings.AccessTokenUrl, requestToken.Secret);
var url = Settings.AccessTokenUrl + "?" + oAuthQuery;
var request = WebRequest.Create(url);
cancelToken.ThrowIfCancellationRequested();
var result = await request.GetStringAsync(cancelToken);
var accessTokenMatch = Regex.Match(result, Constants.RetrieveAccessTokenPattern, RegexOptions.IgnoreCase);
if (!accessTokenMatch.Success)
throw new Exception("Failed to retrieve access token.");
var accessToken = accessTokenMatch.Groups[1].Value;
var accessTokenSecret = accessTokenMatch.Groups[2].Value;
var userID = accessTokenMatch.Groups[4].Value;
var oauthAccessToken = new OAuthAccessToken() { Token = accessToken, Secret = accessTokenSecret, UserID = userID };
return oauthAccessToken;
}
public OAuthAccessToken GetAccessToken(OAuthRequestToken requestToken, string verifier)
{
return GetAccessTokenAsync(requestToken, verifier,CancellationToken.None).Result;
}
public async Task<string> AuthorizeAsync(string userName, string password, OAuthRequestToken requestToken, CancellationToken cancelToken)
{
if (requestToken == null)
throw new Exception("Request token is invalid.");
var queryStringParams = new Dictionary<string, string>();
queryStringParams.Add(Constants.OAuthToken, requestToken.Token);
queryStringParams.Add("userId", HttpEncoder.UrlEncode(userName));
queryStringParams.Add("passwd", HttpEncoder.UrlEncode(password));
queryStringParams.Add(Constants.OAuthCallback, "xml");
var authorizeUrl = Settings.AuthorizeUrl + "?";
foreach (var kv in queryStringParams)
authorizeUrl += string.Format("{0}={1}&", kv.Key, kv.Value);
authorizeUrl = authorizeUrl.TrimEnd('&');
var request = WebRequest.Create(authorizeUrl);
cancelToken.ThrowIfCancellationRequested();
var result = await request.GetStringAsync(cancelToken);
var match = Regex.Match(result, Constants.RetrieveAuthorizationCodePattern, RegexOptions.CultureInvariant);
if (!match.Success)
throw new Exception("Invalid user name or password.");
var verifier = match.Groups[1].Value;
return verifier;
}
public string Authorize(string userName, string password, OAuthRequestToken requestToken, CancellationToken cancelToken)
{
return AuthorizeAsync(userName, password, requestToken, cancelToken).Result;
}
public OAuthAccessToken GetAccessToken(OAuthRequestToken requestToken, string verifier)
{
return(GetAccessTokenAsync(requestToken, verifier, CancellationToken.None).Result);
}
public string Authorize(string userName, string password, OAuthRequestToken requestToken, CancellationToken cancelToken)
{
return(AuthorizeAsync(userName, password, requestToken, cancelToken).Result);
}
