public static string GenerateHeader(Uri uri, String consumerKey, String consumerSecret, String token, String tokenSecret, String httpMethod)
{
OAuthUtil oauthUtil = new OAuthUtil();
string timeStamp = oauthUtil.GenerateTimeStamp();
string nonce = oauthUtil.GenerateNonce();
string normalizedUrl; string normalizedRequestParameters;
string signature = oauthUtil.GenerateSignature(uri, consumerKey, consumerSecret, token, tokenSecret,
httpMethod.ToUpper(), timeStamp, nonce, out normalizedUrl, out normalizedRequestParameters);
signature = System.Web.HttpUtility.UrlEncode(signature);
StringBuilder sb = new StringBuilder();
sb.Append("Authorization: OAuth realm=\"\",oauth_version=\"1.0\",");
sb.AppendFormat("oauth_nonce=\"{0}\",", nonce);
sb.AppendFormat("oauth_timestamp=\"{0}\",", timeStamp);
sb.AppendFormat("oauth_consumer_key=\"{0}\",", consumerKey);
if (!String.IsNullOrEmpty(token))
{
token = System.Web.HttpUtility.UrlEncode(token);
sb.AppendFormat("oauth_token=\"{0}\",", token);
}
sb.Append("oauth_signature_method=\"HMAC-SHA1\",");
sb.AppendFormat("oauth_signature=\"{0}\"", signature);
return sb.ToString();
}
public static string GenerateHeader(Uri uri, String consumerKey, String consumerSecret, String token, String tokenSecret, String httpMethod)
{
OAuthUtil oauthUtil = new OAuthUtil();
string timeStamp = oauthUtil.GenerateTimeStamp();
string nonce = oauthUtil.GenerateNonce();
string normalizedUrl; string normalizedRequestParameters;
string signature = oauthUtil.GenerateSignature(uri, consumerKey, consumerSecret, token, tokenSecret,
httpMethod.ToUpper(), timeStamp, nonce, out normalizedUrl, out normalizedRequestParameters);
signature = System.Web.HttpUtility.UrlEncode(signature);
StringBuilder sb = new StringBuilder();
sb.Append("Authorization: OAuth realm=\"\",oauth_version=\"1.0\",");
sb.AppendFormat("oauth_nonce=\"{0}\",", nonce);
sb.AppendFormat("oauth_timestamp=\"{0}\",", timeStamp);
sb.AppendFormat("oauth_consumer_key=\"{0}\",", consumerKey);
if (!String.IsNullOrEmpty(token))
{
token = System.Web.HttpUtility.UrlEncode(token);
sb.AppendFormat("oauth_token=\"{0}\",", token);
}
sb.Append("oauth_signature_method=\"HMAC-SHA1\",");
sb.AppendFormat("oauth_signature=\"{0}\"", signature);
return(sb.ToString());
}
/// <summary>
/// Takes an existing httpwebrequest and modifies its headers according to
/// the authentication system used.
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public override void ApplyAuthenticationToRequest(HttpWebRequest request)
{
base.ApplyAuthenticationToRequest(request);
string oauthHeader = OAuthUtil.GenerateHeader(
request.RequestUri,
request.Method,
parameters);
request.Headers.Add(oauthHeader);
}
/// <summary>
/// Takes an existing httpwebrequest and modifies its headers according to
/// the authentication system used.
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public override void ApplyAuthenticationToRequest(HttpWebRequest request)
{
base.ApplyAuthenticationToRequest(request);
if (!string.IsNullOrEmpty(parameters.AccessCode) && string.IsNullOrEmpty(parameters.AccessToken))
{
OAuthUtil.GetAccessToken(parameters);
}
request.Headers.Set("Authorization", String.Format(
"{0} {1}", parameters.TokenType, parameters.AccessToken));
}
/// <summary>
/// Takes an existing httpwebrequest and modifies it's headers according to
/// the authentication system used.
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public override void ApplyAuthenticationToRequest(HttpWebRequest request)
{
base.ApplyAuthenticationToRequest(request);
string oauthHeader = OAuthUtil.GenerateHeader(request.RequestUri,
this.ConsumerKey,
this.ConsumerSecret,
this.Token,
this.TokenSecret,
request.Method);
request.Headers.Add(oauthHeader);
}
/////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
/// <summary>sets up the correct credentials for this call</summary>
//////////////////////////////////////////////////////////////////////
protected override void EnsureCredentials()
{
HttpWebRequest http = this.Request as HttpWebRequest;
if (string.IsNullOrEmpty(this.factory.ConsumerKey) || string.IsNullOrEmpty(this.factory.ConsumerSecret))
{
throw new GDataRequestException("ConsumerKey and ConsumerSecret must be provided to use GOAuthRequestFactory");
}
string oauthHeader = OAuthUtil.GenerateHeader(http.RequestUri,
this.factory.ConsumerKey,
this.factory.ConsumerSecret,
this.factory.Token,
this.factory.TokenSecret,
http.Method);
this.Request.Headers.Remove("Authorization"); // needed?
this.Request.Headers.Add(oauthHeader);
}
public override void Execute()
{
try {
base.Execute();
} catch (GDataRequestException re) {
HttpWebResponse webResponse = re.Response as HttpWebResponse;
if (webResponse != null && webResponse.StatusCode == HttpStatusCode.Unauthorized)
{
Tracing.TraceMsg("Access token might have expired, refreshing.");
Reset();
try {
OAuthUtil.RefreshAccessToken(this.factory.Parameters);
} catch (WebException e) {
Tracing.TraceMsg("Failed to refresh access token: " + e.StackTrace);
throw re;
}
base.Execute();
}
else
{
throw;
}
}
}
public static string GenerateHeader(Uri uri, String consumerKey, String consumerSecret, String token, String tokenSecret, String httpMethod)
{
OAuthUtil oauthUtil = new OAuthUtil();
string timeStamp = oauthUtil.GenerateTimeStamp();
string nonce = oauthUtil.GenerateNonce();
string signature = oauthUtil.GenerateSignature(uri, consumerKey, consumerSecret, token, tokenSecret,
httpMethod.ToUpper(), timeStamp, nonce);
StringBuilder sb = new StringBuilder();
sb.Append("Authorization: OAuth oauth_version=\"1.0\",");
sb.AppendFormat("oauth_nonce=\"{0}\",", EncodingPerRFC3986(nonce));
sb.AppendFormat("oauth_timestamp=\"{0}\",", EncodingPerRFC3986(timeStamp));
sb.AppendFormat("oauth_consumer_key=\"{0}\",", EncodingPerRFC3986(consumerKey));
if (!String.IsNullOrEmpty(token))
{
sb.AppendFormat("oauth_token=\"{0}\",", EncodingPerRFC3986(token));
}
sb.Append("oauth_signature_method=\"HMAC-SHA1\",");
sb.AppendFormat("oauth_signature=\"{0}\"", EncodingPerRFC3986(signature));
return(sb.ToString());
}
/// <summary>
/// Generates an OAuth header.
/// </summary>
/// <param name="uri">The URI of the request</param>
/// <param name="consumerKey">The consumer key</param>
/// <param name="consumerSecret">The consumer secret</param>
/// <param name="token"></param>
/// <param name="httpMethod">The http method</param>
/// <returns>The OAuth authorization header</returns>
private static string GenerateHeader(Uri uri, String consumerKey, String consumerSecret, string token, String httpMethod)
{
Contract.Assume(!string.IsNullOrEmpty(token));
//token = System.Web.HttpContext.Current.Server.UrlEncode(token);
//string accessecret =
OAuthUtil oauthUtil = new OAuthUtil();
string timeStamp = oauthUtil.GenerateTimeStamp();
string nonce = oauthUtil.GenerateNonce();
string normalizedUrl; string normalizedRequestParameters;
string signature = oauthUtil.GenerateSignature(uri, consumerKey, consumerSecret, UrlEncode(token), MvcApplication.GoogleTokenManager.GetTokenSecret(token),
httpMethod.ToUpper(), timeStamp, nonce, out normalizedUrl, out normalizedRequestParameters);
signature = UrlEncode(signature);
//StringBuilder sb = new StringBuilder();
//sb.Append("Authorization: OAuth realm=\"\",oauth_version=\"1.0\",");
//sb.AppendFormat("oauth_nonce=\"{0}\",", nonce);
//sb.AppendFormat("oauth_timestamp=\"{0}\",", timeStamp);
//sb.AppendFormat("oauth_consumer_key=\"{0}\",", consumerKey);
//sb.Append("oauth_signature_method=\"HMAC-SHA1\",");
//sb.AppendFormat("oauth_signature=\"{0}\"", signature);
StringBuilder sb = new StringBuilder();
sb.Append("Authorization: OAuth oauth_version=\"1.0\",");
sb.AppendFormat("oauth_nonce=\"{0}\",", nonce);
sb.AppendFormat("oauth_timestamp=\"{0}\",", timeStamp);
sb.AppendFormat("oauth_consumer_key=\"{0}\",", consumerKey);
sb.Append("oauth_signature_method=\"HMAC-SHA1\",");
sb.AppendFormat("oauth_token=\"{0}\",", UrlEncode(token));
// sb.AppendFormat("oauth_token_secret=\"{0}\",", MvcApplication.GoogleTokenManager.GetTokenSecret(State.GoogleAccessToken));
sb.AppendFormat("oauth_signature=\"{0}\"", signature);
return sb.ToString();
}