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 void AppendOAuthHeader(WebRequest request, IDictionary<string, string> accessTokenParams, OAuthAccessToken accessToken)
{
if (!accessTokenParams.ContainsKey(Constants.OAuthToken))
accessTokenParams.Add(Constants.OAuthToken, accessToken.Token);
var oAuth = ConstructOAuthHeader(accessTokenParams, request.RequestUri.ToString(), request.Method, accessToken.Secret);
request.Headers[HttpRequestHeader.Authorization] = oAuth;
}
protected virtual OAuthAccessToken ConvertToAccessTokenByRegex(string result)
{
OAuthAccessToken oauthAccessToken = null;
if (!string.IsNullOrEmpty(result) &&
(Regex.IsMatch(result, Constants.OAuth2AccessTokenPattern1) ||
Regex.IsMatch(result, Constants.OAuth2AccessTokenPattern2)))
{
var group = result.Contains("refresh_token") ?
Regex.Match(result, Constants.OAuth2AccessTokenPattern2) :
Regex.Match(result, Constants.OAuth2AccessTokenPattern1);
var accessToken = group.Groups["token"].Value;
if (accessToken != null)
{
oauthAccessToken = new OAuthAccessToken();
oauthAccessToken.ExpiresIn = Convert.ToInt32(group.Groups["expires"].Value);
oauthAccessToken.Token = group.Groups["token"].Value;
oauthAccessToken.UserID = group.Groups["uid"].Value;
}
}
return(oauthAccessToken);
}
public async Task <OAuthAccessToken> GetOAuthAccessTokenAsync(System.Threading.CancellationToken cancelToken)
{
var helper = new OAuth2Helper(OAuthSettings);
OAuthAccessToken accessToken = null;
switch (GrantType)
{
case GrantType.AuthorizationCode:
accessToken = await helper.GetAccessTokenByCodeAsync(AuthorizationCode);
break;
case GrantType.Password:
accessToken = await helper.GetAccessTokenByPasswordAsync(Passport, Password);
break;
default:
accessToken = await helper.LoginAsync(Passport, Password, cancelToken);
break;
}
return(accessToken);
}
protected virtual OAuthAccessToken ConvertToAccessTokenByRegex(string result)
{
OAuthAccessToken oauthAccessToken = null;
if (!string.IsNullOrEmpty(result) &&
(Regex.IsMatch(result, Constants.OAuth2AccessTokenPattern1) ||
Regex.IsMatch(result, Constants.OAuth2AccessTokenPattern2)))
{
var group = result.Contains("refresh_token") ?
Regex.Match(result, Constants.OAuth2AccessTokenPattern2) :
Regex.Match(result, Constants.OAuth2AccessTokenPattern1);
var accessToken = group.Groups["token"].Value;
if (accessToken != null)
{
oauthAccessToken = new OAuthAccessToken();
oauthAccessToken.ExpiresIn = Convert.ToInt32(group.Groups["expires"].Value);
oauthAccessToken.Token = group.Groups["token"].Value;
oauthAccessToken.UserID = group.Groups["uid"].Value;
}
}
return oauthAccessToken;
}
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 string PreparePostBody(string url, IDictionary<string, string> customPostParams, OAuthAccessToken accessToken)
{
var parameters = GetOAuthBasicParams();
parameters.Add(Constants.OAuthToken, accessToken.Token);
if (null != customPostParams)
{
parameters.Concat(customPostParams);
}
var postBody = ConstructPostBody(parameters, url, accessToken.Secret);
return postBody;
}
public void AppendOAuthHeader(WebRequest request, IDictionary <string, string> accessTokenParams, OAuthAccessToken accessToken)
{
if (!accessTokenParams.ContainsKey(Constants.OAuthToken))
{
accessTokenParams.Add(Constants.OAuthToken, accessToken.Token);
}
var oAuth = ConstructOAuthHeader(accessTokenParams, request.RequestUri.ToString(), request.Method, accessToken.Secret);
request.Headers[HttpRequestHeader.Authorization] = oAuth;
}
public string PreparePostBody(string url, IDictionary <string, string> customPostParams, OAuthAccessToken accessToken)
{
var parameters = GetOAuthBasicParams();
parameters.Add(Constants.OAuthToken, accessToken.Token);
if (null != customPostParams)
{
parameters.Concat(customPostParams);
}
var postBody = ConstructPostBody(parameters, url, accessToken.Secret);
return(postBody);
}
