/// <summary>
/// Gets Gmail request Token.
/// </summary>
/// <param name="callback">OAuth callback Url.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>callback</b> is null reference.</exception>
/// <exception cref="InvalidOperationException">Is raised when this method is called in invalid state.</exception>
public void GetRequestToken(string callback)
{
if (callback == null)
{
throw new ArgumentNullException("callback");
}
if (!string.IsNullOrEmpty(m_RequestToken))
{
throw new InvalidOperationException("Invalid state, you have already called this 'GetRequestToken' method.");
}
// For more info see: http://googlecodesamples.com/oauth_playground/
string timestamp = GenerateTimeStamp();
string nonce = GenerateNonce();
string url = "https://www.google.com/accounts/OAuthGetRequestToken?scope=" + UrlEncode(m_Scope);
string sigUrl = "https://www.google.com/accounts/OAuthGetRequestToken";
// Build signature base.
StringBuilder xxx = new StringBuilder();
xxx.Append("oauth_callback=" + UrlEncode(callback));
xxx.Append("&oauth_consumer_key=" + UrlEncode(m_ConsumerKey));
xxx.Append("&oauth_nonce=" + UrlEncode(nonce));
xxx.Append("&oauth_signature_method=" + UrlEncode("HMAC-SHA1"));
xxx.Append("&oauth_timestamp=" + UrlEncode(timestamp));
xxx.Append("&oauth_version=" + UrlEncode("1.0"));
xxx.Append("&scope=" + UrlEncode(m_Scope));
string signatureBase = "GET" + "&" + UrlEncode(sigUrl) + "&" + UrlEncode(xxx.ToString());
// Calculate signature.
string signature = ComputeHmacSha1Signature(signatureBase, m_ConsumerSecret, null);
//Build Authorization header.
StringBuilder authHeader = new StringBuilder();
//authHeader.Append("Authorization: OAuth ");
authHeader.Append("oauth_version=\"1.0\", ");
authHeader.Append("oauth_nonce=\"" + nonce + "\", ");
authHeader.Append("oauth_timestamp=\"" + timestamp + "\", ");
authHeader.Append("oauth_consumer_key=\"" + m_ConsumerKey + "\", ");
authHeader.Append("oauth_callback=\"" + UrlEncode(callback) + "\", ");
authHeader.Append("oauth_signature_method=\"HMAC-SHA1\", ");
authHeader.Append("oauth_signature=\"" + UrlEncode(signature) + "\"");
// Create web request and read response.
Helpers.SendHttpRequest(url, "GET",
contentString: null,
additionalHeaders: new Dictionary <String, String>()
{
{ "Authorization", "OAuth " + authHeader.ToString() }
},
handleResponseFunc: (WebResponse response) =>
{
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
foreach (string parameter in HttpUtility.UrlDecode(reader.ReadToEnd()).Split('&'))
{
string[] name_value = parameter.Split('=');
if (string.Equals(name_value[0], "oauth_token", Helpers.GetDefaultIgnoreCaseComparison()))
{
m_RequestToken = name_value[1];
}
else if (string.Equals(name_value[0], "oauth_token_secret", Helpers.GetDefaultIgnoreCaseComparison()))
{
m_RequestTokenSecret = name_value[1];
}
}
}
});
}
internal void FinishInitialization()
{
string host = UserHostName;
if (_version > HttpVersion.Version10 && (host == null || host.Length == 0))
{
_context.ErrorMessage = "Invalid host name";
return;
}
string path;
Uri raw_uri = null;
if (MaybeUri(_rawUrl.ToLowerInvariant()) && Uri.TryCreate(_rawUrl, UriKind.Absolute, out raw_uri))
{
path = raw_uri.PathAndQuery;
}
else
{
path = _rawUrl;
}
if ((host == null || host.Length == 0))
{
host = UserHostAddress;
}
if (raw_uri != null)
{
host = raw_uri.Host;
}
int colon = host.IndexOf(':');
if (colon >= 0)
{
host = host.Substring(0, colon);
}
string base_uri = string.Format("{0}://{1}:{2}", RequestScheme, host, LocalEndPoint.Port);
if (!Uri.TryCreate(base_uri + path, UriKind.Absolute, out _requestUri))
{
_context.ErrorMessage = WebUtility.HtmlEncode("Invalid url: " + base_uri + path);
return;
}
_requestUri = HttpListenerRequestUriBuilder.GetRequestUri(_rawUrl, _requestUri.Scheme,
_requestUri.Authority, _requestUri.LocalPath, _requestUri.Query);
if (_version >= HttpVersion.Version11)
{
string t_encoding = Headers[HttpKnownHeaderNames.TransferEncoding];
_isChunked = (t_encoding != null && string.Equals(t_encoding, "chunked", StringComparison.OrdinalIgnoreCase));
// 'identity' is not valid!
if (t_encoding != null && !_isChunked)
{
_context.Connection.SendError(null, 501);
return;
}
}
if (!_isChunked && !_clSet)
{
if (string.Equals(_method, "POST", StringComparison.OrdinalIgnoreCase) ||
string.Equals(_method, "PUT", StringComparison.OrdinalIgnoreCase))
{
_context.Connection.SendError(null, 411);
return;
}
}
if (String.Compare(Headers[HttpKnownHeaderNames.Expect], "100-continue", StringComparison.OrdinalIgnoreCase) == 0)
{
HttpResponseStream output = _context.Connection.GetResponseStream();
output.InternalWrite(s_100continue, 0, s_100continue.Length);
}
}
/// <summary>
/// Gets user Gmail email address.
/// </summary>
/// <returns>Returns user Gmail email address.</returns>
/// <exception cref="InvalidOperationException">Is raised when this method is called in invalid state.</exception>
public string GetUserEmail()
{
if (string.IsNullOrEmpty(m_AccessToken))
{
throw new InvalidOperationException("Invalid state, you need to call 'GetAccessToken' method first.");
}
string url = "https://www.googleapis.com/userinfo/email";
string timestamp = GenerateTimeStamp();
string nonce = GenerateNonce();
// Build signature base.
StringBuilder xxx = new StringBuilder();
xxx.Append("oauth_consumer_key=" + UrlEncode(m_ConsumerKey));
xxx.Append("&oauth_nonce=" + UrlEncode(nonce));
xxx.Append("&oauth_signature_method=" + UrlEncode("HMAC-SHA1"));
xxx.Append("&oauth_timestamp=" + UrlEncode(timestamp));
xxx.Append("&oauth_token=" + UrlEncode(m_AccessToken));
xxx.Append("&oauth_version=" + UrlEncode("1.0"));
string signatureBase = "GET" + "&" + UrlEncode(url) + "&" + UrlEncode(xxx.ToString());
// Calculate signature.
string signature = ComputeHmacSha1Signature(signatureBase, m_ConsumerSecret, m_AccessTokenSecret);
//Build Authorization header.
StringBuilder authHeader = new StringBuilder();
//authHeader.Append("Authorization: OAuth ");
authHeader.Append("oauth_version=\"1.0\", ");
authHeader.Append("oauth_nonce=\"" + nonce + "\", ");
authHeader.Append("oauth_timestamp=\"" + timestamp + "\", ");
authHeader.Append("oauth_consumer_key=\"" + m_ConsumerKey + "\", ");
authHeader.Append("oauth_token=\"" + UrlEncode(m_AccessToken) + "\", ");
authHeader.Append("oauth_signature_method=\"HMAC-SHA1\", ");
authHeader.Append("oauth_signature=\"" + UrlEncode(signature) + "\"");
// Create web request and read response.
Helpers.SendHttpRequest(url, "GET",
contentString: null,
additionalHeaders: new Dictionary <String, String>()
{
{ "Authorization", "OAuth " + authHeader.ToString() }
},
handleResponseFunc: (WebResponse response) =>
{
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
foreach (string parameter in HttpUtility.UrlDecode(reader.ReadToEnd()).Split('&'))
{
string[] name_value = parameter.Split('=');
if (string.Equals(name_value[0], "email", Helpers.GetDefaultIgnoreCaseComparison()))
{
m_Email = name_value[1];
}
}
}
});
return(m_Email);
}
HttpListener SearchListener(Uri uri, out ListenerPrefix prefix)
{
prefix = null;
if (uri == null)
{
return(null);
}
string host = uri.Host;
int port = uri.Port;
string path = WebUtility.UrlDecode(uri.AbsolutePath);
string path_slash = path [path.Length - 1] == '/' ? path : path + "/";
HttpListener best_match = null;
int best_length = -1;
if (host != null && host != "")
{
Hashtable p_ro = prefixes;
foreach (ListenerPrefix p in p_ro.Keys)
{
string ppath = p.Path;
if (ppath.Length < best_length)
{
continue;
}
if (p.Host != host || p.Port != port)
{
continue;
}
if (path.StartsWith(ppath) || path_slash.StartsWith(ppath))
{
best_length = ppath.Length;
best_match = (HttpListener)p_ro [p];
prefix = p;
}
}
if (best_length != -1)
{
return(best_match);
}
}
ArrayList list = unhandled;
best_match = MatchFromList(host, path, list, out prefix);
if (path != path_slash && best_match == null)
{
best_match = MatchFromList(host, path_slash, list, out prefix);
}
if (best_match != null)
{
return(best_match);
}
list = all;
best_match = MatchFromList(host, path, list, out prefix);
if (path != path_slash && best_match == null)
{
best_match = MatchFromList(host, path_slash, list, out prefix);
}
if (best_match != null)
{
return(best_match);
}
return(null);
}