private async void button1_Click(object sender, EventArgs e)
{
requestToken = await MyService.GetRequestToken();
string url = MyService.GetAuthorizeRequestTokenUrl(requestToken);
//External browser
//System.Diagnostics.Process.Start(url);
//Internal Browser
webBrowser1.Navigate(url);
}
public FiveHundredPxService(string consumerKey, string consumerSecret, string callbackUrl, OAuthToken token)
{
_callbackUrl = callbackUrl;
_consumerKey = consumerKey;
_consumerSecret = consumerSecret;
AccessToken = token;
}
private string GenerateSignature(Uri url, OAuthToken token, string httpMethod, out string normalizedUrl, out string normalizedRequestParameters)
{
if (token.Token == null)
{
token.Token = string.Empty;
}
if (token.Secret == null)
{
token.Secret = string.Empty;
}
if (string.IsNullOrEmpty(httpMethod))
{
throw new ArgumentNullException("httpMethod");
}
var parameters = GetQueryParameters(url.OriginalString);
parameters.Add(new QueryParameter(OAuthParameter.Version, UrlEncode(OAuthVersion)));
parameters.Add(new QueryParameter(OAuthParameter.Nonce, UrlEncode(GenerateNonce())));
parameters.Add(new QueryParameter(OAuthParameter.Timestamp, UrlEncode(GenerateTimeStamp())));
parameters.Add(new QueryParameter(OAuthParameter.SignatureMethod, UrlEncode(OAuthSignatureMethod)));
parameters.Add(new QueryParameter(OAuthParameter.ConsumerKey, UrlEncode(_consumerKey)));
parameters.Add(new QueryParameter(OAuthParameter.Callback, _callbackUrl));
if (!string.IsNullOrEmpty(token.Token))
{
parameters.Add(new QueryParameter(OAuthParameter.Token, token.Token));
}
if (!string.IsNullOrWhiteSpace(token.Verifier))
{
parameters.Add(new QueryParameter(OAuthParameter.Verifier, token.Verifier));
}
parameters.Sort(new QueryParameterComparer());
normalizedUrl = string.Format("{0}://{1}", url.Scheme, url.Host);
if (!((url.Scheme == "http" && url.Port == 80) || (url.Scheme == "https" && url.Port == 443)))
{
normalizedUrl += ":" + url.Port;
}
normalizedUrl += url.AbsolutePath;
normalizedRequestParameters = NormalizeRequestParameters(parameters);
var signatureBase = new StringBuilder();
signatureBase.AppendFormat("{0}&", httpMethod.ToUpper());
signatureBase.AppendFormat("{0}&", UrlEncode(normalizedUrl));
signatureBase.AppendFormat("{0}", UrlEncode(normalizedRequestParameters));
#if DEBUG_API
Debug.WriteLine("Signature Base: " + signatureBase.ToString());
Debug.WriteLine("normalizedRequestParameters: " + normalizedRequestParameters);
#endif
var hmacsha1 = new HMACSHA1
{
Key = Encoding.ASCII.GetBytes(string.Format("{0}&{1}", UrlEncode(_consumerSecret), string.IsNullOrEmpty(token.Secret) ? "" : UrlEncode(token.Secret)))
};
byte[] dataBuffer = Encoding.ASCII.GetBytes(signatureBase.ToString());
byte[] hashBytes = hmacsha1.ComputeHash(dataBuffer);
return(Convert.ToBase64String(hashBytes));
}
