/// <summary>
/// Generates an OAuth header.
/// </summary>
/// <param name="uri">The URI of the request</param>
/// <param name="httpMethod">The http method</param>
/// <param name="parameters">The OAuth parameters</param>
/// <returns>The OAuth authorization header</returns>
public static string GenerateHeader(Uri uri, string httpMethod, OAuthParameters parameters) {
parameters.Timestamp = OAuthBase.GenerateTimeStamp();
parameters.Nonce = OAuthBase.GenerateNonce();
string signature = OAuthBase.GenerateSignature(uri, httpMethod, parameters);
StringBuilder sb = new StringBuilder();
sb.AppendFormat("Authorization: OAuth {0}=\"{1}\",", OAuthBase.OAuthVersionKey, OAuthBase.OAuthVersion);
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthNonceKey, OAuthBase.EncodingPerRFC3986(parameters.Nonce));
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthTimestampKey, OAuthBase.EncodingPerRFC3986(parameters.Timestamp));
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthConsumerKeyKey, OAuthBase.EncodingPerRFC3986(parameters.ConsumerKey));
if (parameters.BaseProperties.ContainsKey(OAuthBase.OAuthVerifierKey)) {
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthVerifierKey, OAuthBase.EncodingPerRFC3986(parameters.BaseProperties[OAuthBase.OAuthVerifierKey]));
}
if (!String.IsNullOrEmpty(parameters.Token)) {
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthTokenKey, OAuthBase.EncodingPerRFC3986(parameters.Token));
}
if (parameters.BaseProperties.ContainsKey(OAuthBase.OAuthCallbackKey)) {
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthCallbackKey, OAuthBase.EncodingPerRFC3986(parameters.BaseProperties[OAuthBase.OAuthCallbackKey]));
}
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthSignatureMethodKey, OAuthBase.HMACSHA1SignatureType);
sb.AppendFormat("{0}=\"{1}\"", OAuthBase.OAuthSignatureKey, OAuthBase.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">The OAuth token</param>
/// <param name="tokenSecret">The OAuth token secret</param>
/// <param name="httpMethod">The http method</param>
/// <returns>The OAuth authorization header</returns>
public static string GenerateHeader(Uri uri, String consumerKey, String consumerSecret, String token,
String tokenSecret, String httpMethod) {
OAuthParameters parameters = new OAuthParameters() {
ConsumerKey = consumerKey, ConsumerSecret = consumerSecret, Token = token, TokenSecret = tokenSecret, SignatureMethod = OAuthBase.HMACSHA1SignatureType
};
return GenerateHeader(uri, httpMethod, parameters);
}
/// <summary>
/// Generates an OAuth header.
/// </summary>
/// <param name="uri">The URI of the request</param>
/// <param name="httpMethod">The http method</param>
/// <param name="parameters">The OAuth parameters</param>
/// <returns>The OAuth authorization header</returns>
public static string GenerateHeader(Uri uri, string httpMethod, OAuthParameters parameters)
{
parameters.Timestamp = OAuthBase.GenerateTimeStamp();
parameters.Nonce = OAuthBase.GenerateNonce();
string signature = OAuthBase.GenerateSignature(uri, httpMethod, parameters);
StringBuilder sb = new StringBuilder();
sb.AppendFormat("Authorization: OAuth {0}=\"{1}\",", OAuthBase.OAuthVersionKey, OAuthBase.OAuthVersion);
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthNonceKey, OAuthBase.EncodingPerRFC3986(parameters.Nonce));
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthTimestampKey, OAuthBase.EncodingPerRFC3986(parameters.Timestamp));
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthConsumerKeyKey, OAuthBase.EncodingPerRFC3986(parameters.ConsumerKey));
if (parameters.BaseProperties.ContainsKey(OAuthBase.OAuthVerifierKey))
{
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthVerifierKey, OAuthBase.EncodingPerRFC3986(parameters.BaseProperties[OAuthBase.OAuthVerifierKey]));
}
if (!String.IsNullOrEmpty(parameters.Token))
{
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthTokenKey, OAuthBase.EncodingPerRFC3986(parameters.Token));
}
if (parameters.BaseProperties.ContainsKey(OAuthBase.OAuthCallbackKey))
{
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthCallbackKey, OAuthBase.EncodingPerRFC3986(parameters.BaseProperties[OAuthBase.OAuthCallbackKey]));
}
sb.AppendFormat("{0}=\"{1}\",", OAuthBase.OAuthSignatureMethodKey, OAuthBase.HMACSHA1SignatureType);
sb.AppendFormat("{0}=\"{1}\"", OAuthBase.OAuthSignatureKey, OAuthBase.EncodingPerRFC3986(signature));
return(sb.ToString());
}
/// <summary>
/// Exchanges the user-authorized request token for an access token.
/// When successful, updates the OAuthParameter instance passed as parameter by setting
/// Token and TokenSecret.
/// </summary>
/// <param name="parameters">The OAuth parameters</param>
public static void GetAccessToken(OAuthParameters parameters)
{
Uri requestUri = new Uri(accessTokenUrl);
string headers = GenerateHeader(requestUri, "GET", parameters);
WebRequest request = WebRequest.Create(requestUri);
request.Headers.Add(headers);
WebResponse response = request.GetResponse();
string result = "";
if (response != null)
{
Stream responseStream = response.GetResponseStream();
StreamReader reader = new StreamReader(responseStream);
result = reader.ReadToEnd();
}
//split results and update parameters
SortedDictionary <string, string> responseValues = OAuthBase.GetQueryParameters(result);
parameters.Token = responseValues[OAuthBase.OAuthTokenKey];
parameters.TokenSecret = responseValues[OAuthBase.OAuthTokenSecretKey];
}
/// <summary>
/// Generate the signature base that is used to produce the signature
/// </summary>
/// <param name="url">The full url that needs to be signed including its non OAuth url parameters</param>
/// <param name="consumerKey">The consumer key</param>
/// <param name="token">The token, if available. If not available pass null or an empty string</param>
/// <param name="tokenSecret">The token secret, if available. If not available pass null or an empty string</param>
/// <param name="httpMethod">The http method used. Must be a valid HTTP method verb (POST,GET,PUT, etc)</param>
/// <param name="timeStamp">The OAuth timestamp. Must be a valid timestamp and equal or greater than
/// timestamps used in previous requests</param>
/// <param name="nonce">The OAuth nonce. A random string uniquely generated for each request</param>
/// <param name="signatureType">The signature type.</param>
/// <returns>The signature base</returns>
public static string GenerateSignatureBase(Uri url, string consumerKey, string token, string tokenSecret,
string httpMethod, string timeStamp, string nonce, string signatureType)
{
OAuthParameters parameters = new OAuthParameters()
{
ConsumerKey = consumerKey, Token = token, TokenSecret = tokenSecret, Timestamp = timeStamp, Nonce = nonce, SignatureMethod = signatureType
};
return(GenerateSignatureBase(url, httpMethod, parameters));
}
/// <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">The OAuth token</param>
/// <param name="tokenSecret">The OAuth token secret</param>
/// <param name="httpMethod">The http method</param>
/// <returns>The OAuth authorization header</returns>
public static string GenerateHeader(Uri uri, String consumerKey, String consumerSecret, String token,
String tokenSecret, String httpMethod)
{
OAuthParameters parameters = new OAuthParameters()
{
ConsumerKey = consumerKey, ConsumerSecret = consumerSecret, Token = token, TokenSecret = tokenSecret, SignatureMethod = OAuthBase.HMACSHA1SignatureType
};
return(GenerateHeader(uri, httpMethod, parameters));
}
/// <summary>
/// Generates the url which the user should visit in order to authenticate and
/// authorize with the Service Provider.
/// When successful, updates the OAuthParameter instance passed as parameter by setting
/// Token and TokenSecret.
/// </summary>
/// <param name="parameters">The OAuth parameters</param>
/// <returns>The full authorization url the user should visit</returns>
public static string CreateUserAuthorizationUrl(OAuthParameters parameters)
{
StringBuilder sb = new StringBuilder();
sb.Append(userAuthorizationUrl);
sb.AppendFormat("?{0}={1}", OAuthBase.OAuthTokenKey, OAuthBase.EncodingPerRFC3986(parameters.Token));
if (!string.IsNullOrEmpty(parameters.Callback))
{
sb.AppendFormat("&{0}={1}", OAuthBase.OAuthCallbackKey, OAuthBase.EncodingPerRFC3986(parameters.Callback));
}
return(sb.ToString());
}
/// <summary>
/// a constructor for 3-legged OAuth
/// </summary>
/// <param name="applicationName">The name of the application</param>
/// <param name="consumerKey">the consumerKey to use</param>
/// <param name="consumerSecret">the consumerSecret to use</param>
/// <param name="token">The token to be used</param>
/// <param name="tokenSecret">The tokenSecret to be used</param>
/// <returns></returns>
public OAuth3LeggedAuthenticator(string applicationName,
string consumerKey,
string consumerSecret,
string token,
string tokenSecret,
string scope,
string signatureMethod)
: base(applicationName, consumerKey, consumerSecret)
{
this.parameters = new OAuthParameters()
{
ConsumerKey = consumerKey, ConsumerSecret = consumerSecret, Token = token, TokenSecret = tokenSecret, Scope = scope, SignatureMethod = signatureMethod
};
}
/// <summary>
/// overloaded constructor that sets parameters from an OAuthParameter instance.
/// </summary>
public GOAuthRequestFactory(string service, string applicationName, OAuthParameters parameters)
: base(service, applicationName) {
if (parameters.ConsumerKey != null) {
this.ConsumerKey = parameters.ConsumerKey;
}
if (parameters.ConsumerSecret != null) {
this.ConsumerSecret = parameters.ConsumerSecret;
}
if (parameters.Token != null) {
this.Token = parameters.Token;
}
if (parameters.TokenSecret != null) {
this.TokenSecret = parameters.TokenSecret;
}
}
/// <summary>
/// Helper method which parses a querystring for the OAuth related parameters.
/// It updates the OAuthParameter instance passed as parameter by setting
/// Token, TokenSecret and Verifier (if present).
/// </summary>
/// <param name="parameters">The OAuth parameters</param>
public static void UpdateOAuthParametersFromCallback(string queryString, OAuthParameters parameters)
{
//split results and update parameters
SortedDictionary <string, string> responseValues = OAuthBase.GetQueryParameters(queryString);
parameters.Token = responseValues[OAuthBase.OAuthTokenKey];
if (responseValues.ContainsKey(OAuthBase.OAuthTokenSecretKey))
{
parameters.TokenSecret = responseValues[OAuthBase.OAuthTokenSecretKey];
}
if (responseValues.ContainsKey(OAuthBase.OAuthVerifierKey))
{
parameters.Verifier = responseValues[OAuthBase.OAuthVerifierKey];
}
}
/// <summary>
/// a constructor for 2-legged OAuth
/// </summary>
/// <param name="applicationName">The name of the application</param>
/// <param name="consumerKey">the consumerKey to use</param>
/// <param name="consumerSecret">the consumerSecret to use</param>
/// <param name="user">the username to use</param>
/// <param name="domain">the domain to use</param>
/// <returns></returns>
public OAuth2LeggedAuthenticator(
string applicationName,
string consumerKey,
string consumerSecret,
string user,
string domain,
string signatureMethod)
: base(applicationName, consumerKey, consumerSecret)
{
this.oAuthUser = user;
this.oAuthDomain = domain;
this.parameters = new OAuthParameters()
{
ConsumerKey = consumerKey, ConsumerSecret = consumerSecret, SignatureMethod = signatureMethod
};
}
/// <summary>
/// Generates a signature using the specified signatureMethod
/// </summary>
/// <param name="url">The full url that needs to be signed including its non OAuth url parameters</param>
/// <param name="httpMethod">The http method used. Must be a valid HTTP method verb (POST,GET,PUT, etc)</param>
/// <param name="parameters">The OAuth parameters</param>
/// <returns>A base64 string of the hash value</returns>
public static string GenerateSignature(Uri url, string httpMethod, OAuthParameters parameters)
{
switch (parameters.SignatureMethod)
{
case PlainTextSignatureType:
return HttpUtility.UrlEncode(string.Format("{0}&{1}", parameters.ConsumerKey, parameters.TokenSecret));
case HMACSHA1SignatureType:
string signatureBase = GenerateSignatureBase(url, httpMethod, parameters);
HMACSHA1 hmacsha1 = new HMACSHA1();
hmacsha1.Key = Encoding.ASCII.GetBytes(GenerateOAuthSignature(parameters.ConsumerSecret, parameters.TokenSecret));
return GenerateSignatureUsingHash(signatureBase, hmacsha1);
case RSASHA1SignatureType:
throw new NotImplementedException();
default:
throw new ArgumentException("Unknown signature type", "signatureType");
}
}
/// <summary>
/// Generate the signature base that is used to produce the signature
/// </summary>
/// <param name="url">The full url that needs to be signed including its non OAuth url parameters</param>
/// <param name="httpMethod">The http method used. Must be a valid HTTP method verb (POST,GET,PUT, etc)</param>
/// <param name="parameters">The OAuth parameters</param>
/// <returns>The signature base</returns>
public static string GenerateSignatureBase(Uri url, string httpMethod, OAuthParameters parameters)
{
if (string.IsNullOrEmpty(parameters.ConsumerKey))
{
throw new ArgumentNullException("consumerKey");
}
if (string.IsNullOrEmpty(httpMethod))
{
throw new ArgumentNullException("httpMethod");
}
if (string.IsNullOrEmpty(parameters.SignatureMethod))
{
throw new ArgumentNullException("signatureMethod");
}
string normalizedUrl = null;
string normalizedRequestParameters = null;
SortedDictionary <string, string> allParameters = GetQueryParameters(url.Query, parameters.BaseProperties);
if (!allParameters.ContainsKey(OAuthVersionKey))
{
allParameters.Add(OAuthVersionKey, OAuthVersion);
}
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(allParameters);
StringBuilder signatureBase = new StringBuilder();
signatureBase.AppendFormat(CultureInfo.InvariantCulture, "{0}&", httpMethod.ToUpper());
signatureBase.AppendFormat(CultureInfo.InvariantCulture, "{0}&", EncodingPerRFC3986(normalizedUrl));
signatureBase.AppendFormat(CultureInfo.InvariantCulture, "{0}", EncodingPerRFC3986(normalizedRequestParameters));
return(signatureBase.ToString());
}
/// <summary>
/// overloaded constructor that sets parameters from an OAuthParameter instance.
/// </summary>
public GOAuthRequestFactory(string service, string applicationName, OAuthParameters parameters)
: base(service, applicationName)
{
if (parameters.ConsumerKey != null)
{
this.ConsumerKey = parameters.ConsumerKey;
}
if (parameters.ConsumerSecret != null)
{
this.ConsumerSecret = parameters.ConsumerSecret;
}
if (parameters.Token != null)
{
this.Token = parameters.Token;
}
if (parameters.TokenSecret != null)
{
this.TokenSecret = parameters.TokenSecret;
}
}
/// <summary>
/// Contacts Google for a request token, first step of the OAuth authentication process.
/// When successful, updates the OAuthParameter instance passed as parameter by setting
/// Token and TokenSecret.
/// </summary>
/// <param name="parameters">The OAuth parameters</param>
public static void GetUnauthorizedRequestToken(OAuthParameters parameters)
{
Uri requestUri = new Uri(string.Format("{0}?scope={1}", requestTokenUrl, OAuthBase.EncodingPerRFC3986(parameters.Scope)));
// callback is only needed when getting the request token
bool callbackExists = false;
if (!string.IsNullOrEmpty(parameters.Callback))
{
parameters.BaseProperties.Add(OAuthBase.OAuthCallbackKey, parameters.Callback);
callbackExists = true;
}
string headers = GenerateHeader(requestUri, "GET", parameters);
WebRequest request = WebRequest.Create(requestUri);
request.Headers.Add(headers);
WebResponse response = request.GetResponse();
string result = "";
if (response != null)
{
Stream responseStream = response.GetResponseStream();
StreamReader reader = new StreamReader(responseStream);
result = reader.ReadToEnd();
}
if (callbackExists)
{
parameters.BaseProperties.Remove(OAuthBase.OAuthCallbackKey);
}
// split results and update parameters
SortedDictionary <string, string> responseValues = OAuthBase.GetQueryParameters(result);
parameters.Token = responseValues[OAuthBase.OAuthTokenKey];
parameters.TokenSecret = responseValues[OAuthBase.OAuthTokenSecretKey];
}
public void OAuth3LeggedAuthenticationTest() {
Tracing.TraceMsg("Entering OAuth3LeggedAuthenticationTest");
CalendarService service = new CalendarService("OAuthTestcode");
OAuthParameters parameters = new OAuthParameters() {
ConsumerKey = this.oAuthConsumerKey,
ConsumerSecret = this.oAuthConsumerSecret,
Token = this.oAuthToken,
TokenSecret = this.oAuthTokenSecret,
Scope = this.oAuthScope,
SignatureMethod = this.oAuthSignatureMethod
};
GOAuthRequestFactory requestFactory = new GOAuthRequestFactory("cl", "OAuthTestcode", parameters);
service.RequestFactory = requestFactory;
CalendarEntry calendar = new CalendarEntry();
calendar.Title.Text = "Test OAuth";
Uri postUri = new Uri("https://www.google.com/calendar/feeds/default/owncalendars/full");
CalendarEntry createdCalendar = (CalendarEntry)service.Insert(postUri, calendar);
// delete the new entry
createdCalendar.Delete();
}
/// <summary>
/// Generates a signature using the specified signatureMethod
/// </summary>
/// <param name="url">The full url that needs to be signed including its non OAuth url parameters</param>
/// <param name="httpMethod">The http method used. Must be a valid HTTP method verb (POST,GET,PUT, etc)</param>
/// <param name="parameters">The OAuth parameters</param>
/// <returns>A base64 string of the hash value</returns>
public static string GenerateSignature(Uri url, string httpMethod, OAuthParameters parameters) {
switch (parameters.SignatureMethod) {
case PlainTextSignatureType:
return HttpUtility.UrlEncode(string.Format("{0}&{1}", parameters.ConsumerKey, parameters.TokenSecret));
case HMACSHA1SignatureType:
string signatureBase = GenerateSignatureBase(url, httpMethod, parameters);
HMACSHA1 hmacsha1 = new HMACSHA1();
hmacsha1.Key = Encoding.ASCII.GetBytes(GenerateOAuthSignature(parameters.ConsumerSecret, parameters.TokenSecret));
return GenerateSignatureUsingHash(signatureBase, hmacsha1);
case RSASHA1SignatureType:
throw new NotImplementedException();
default:
throw new ArgumentException("Unknown signature type", "signatureType");
}
}
/// <summary>
/// Generates a signature using the specified signatureMethod
/// </summary>
/// <param name="url">The full url that needs to be signed including its non OAuth url parameters</param>
/// <param name="consumerKey">The consumer key</param>
/// <param name="consumerSecret">The consumer seceret</param>
/// <param name="token">The token, if available. If not available pass null or an empty string</param>
/// <param name="tokenSecret">The token secret, if available. If not available pass null or an empty string</param>
/// <param name="httpMethod">The http method used. Must be a valid HTTP method verb (POST,GET,PUT, etc)</param>
/// <param name="timeStamp">The OAuth timestamp. Must be a valid timestamp and equal or greater than
/// timestamps used in previous requests</param>
/// <param name="nonce">The OAuth nonce. A random string uniquely generated for each request</param>
/// <param name="signatureMethod">The type of signature to use</param>
/// <returns>A base64 string of the hash value</returns>
public static string GenerateSignature(Uri url, string consumerKey, string consumerSecret, string token,
string tokenSecret, string httpMethod, string timeStamp, string nonce, string signatureMethod) {
OAuthParameters parameters = new OAuthParameters() {
ConsumerKey = consumerKey, ConsumerSecret = consumerSecret, Token = token, TokenSecret = tokenSecret,
Timestamp = timeStamp, Nonce = nonce, SignatureMethod = signatureMethod
};
return GenerateSignature(url, httpMethod, parameters);
}
/// <summary>
/// Generate the signature base that is used to produce the signature
/// </summary>
/// <param name="url">The full url that needs to be signed including its non OAuth url parameters</param>
/// <param name="httpMethod">The http method used. Must be a valid HTTP method verb (POST,GET,PUT, etc)</param>
/// <param name="parameters">The OAuth parameters</param>
/// <returns>The signature base</returns>
public static string GenerateSignatureBase(Uri url, string httpMethod, OAuthParameters parameters) {
if (string.IsNullOrEmpty(parameters.ConsumerKey)) {
throw new ArgumentNullException("consumerKey");
}
if (string.IsNullOrEmpty(httpMethod)) {
throw new ArgumentNullException("httpMethod");
}
if (string.IsNullOrEmpty(parameters.SignatureMethod)) {
throw new ArgumentNullException("signatureMethod");
}
string normalizedUrl = null;
string normalizedRequestParameters = null;
SortedDictionary<string, string> allParameters = GetQueryParameters(url.Query, parameters.BaseProperties);
if (!allParameters.ContainsKey(OAuthVersionKey)) {
allParameters.Add(OAuthVersionKey, OAuthVersion);
}
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(allParameters);
StringBuilder signatureBase = new StringBuilder();
signatureBase.AppendFormat(CultureInfo.InvariantCulture, "{0}&", httpMethod.ToUpper());
signatureBase.AppendFormat(CultureInfo.InvariantCulture, "{0}&", EncodingPerRFC3986(normalizedUrl));
signatureBase.AppendFormat(CultureInfo.InvariantCulture, "{0}", EncodingPerRFC3986(normalizedRequestParameters));
return signatureBase.ToString();
}
/// <summary>
/// Exchanges the user-authorized request token for an access token.
/// When successful, updates the OAuthParameter instance passed as parameter by setting
/// Token and TokenSecret.
/// </summary>
/// <param name="parameters">The OAuth parameters</param>
public static void GetAccessToken(OAuthParameters parameters) {
Uri requestUri = new Uri(accessTokenUrl);
string headers = GenerateHeader(requestUri, "GET", parameters);
WebRequest request = WebRequest.Create(requestUri);
request.Headers.Add(headers);
WebResponse response = request.GetResponse();
string result = "";
if (response != null) {
Stream responseStream = response.GetResponseStream();
StreamReader reader = new StreamReader(responseStream);
result = reader.ReadToEnd();
}
//split results and update parameters
SortedDictionary<string, string> responseValues = OAuthBase.GetQueryParameters(result);
parameters.Token = responseValues[OAuthBase.OAuthTokenKey];
parameters.TokenSecret = responseValues[OAuthBase.OAuthTokenSecretKey];
}
/// <summary>
/// Helper method which parses a querystring for the OAuth related parameters.
/// It updates the OAuthParameter instance passed as parameter by setting
/// Token, TokenSecret and Verifier (if present).
/// </summary>
/// <param name="parameters">The OAuth parameters</param>
public static void UpdateOAuthParametersFromCallback(string queryString, OAuthParameters parameters) {
//split results and update parameters
SortedDictionary<string, string> responseValues = OAuthBase.GetQueryParameters(queryString);
parameters.Token = responseValues[OAuthBase.OAuthTokenKey];
if (responseValues.ContainsKey(OAuthBase.OAuthTokenSecretKey)) {
parameters.TokenSecret = responseValues[OAuthBase.OAuthTokenSecretKey];
}
if (responseValues.ContainsKey(OAuthBase.OAuthVerifierKey)) {
parameters.Verifier = responseValues[OAuthBase.OAuthVerifierKey];
}
}
/// <summary>
/// Generates the url which the user should visit in order to authenticate and
/// authorize with the Service Provider.
/// When successful, updates the OAuthParameter instance passed as parameter by setting
/// Token and TokenSecret.
/// </summary>
/// <param name="parameters">The OAuth parameters</param>
/// <returns>The full authorization url the user should visit</returns>
public static string CreateUserAuthorizationUrl(OAuthParameters parameters) {
StringBuilder sb = new StringBuilder();
sb.Append(userAuthorizationUrl);
sb.AppendFormat("?{0}={1}", OAuthBase.OAuthTokenKey, OAuthBase.EncodingPerRFC3986(parameters.Token));
if (!string.IsNullOrEmpty(parameters.Callback)) {
sb.AppendFormat("&{0}={1}", OAuthBase.OAuthCallbackKey, OAuthBase.EncodingPerRFC3986(parameters.Callback));
}
return sb.ToString();
}
/// <summary>
/// Contacts Google for a request token, first step of the OAuth authentication process.
/// When successful, updates the OAuthParameter instance passed as parameter by setting
/// Token and TokenSecret.
/// </summary>
/// <param name="parameters">The OAuth parameters</param>
public static void GetUnauthorizedRequestToken(OAuthParameters parameters) {
Uri requestUri = new Uri(string.Format("{0}?scope={1}", requestTokenUrl, OAuthBase.EncodingPerRFC3986(parameters.Scope)));
// callback is only needed when getting the request token
bool callbackExists = false;
if (!string.IsNullOrEmpty(parameters.Callback)) {
parameters.BaseProperties.Add(OAuthBase.OAuthCallbackKey, parameters.Callback);
callbackExists = true;
}
string headers = GenerateHeader(requestUri, "GET", parameters);
WebRequest request = WebRequest.Create(requestUri);
request.Headers.Add(headers);
WebResponse response = request.GetResponse();
string result = "";
if (response != null) {
Stream responseStream = response.GetResponseStream();
StreamReader reader = new StreamReader(responseStream);
result = reader.ReadToEnd();
}
if (callbackExists) {
parameters.BaseProperties.Remove(OAuthBase.OAuthCallbackKey);
}
// split results and update parameters
SortedDictionary<string, string> responseValues = OAuthBase.GetQueryParameters(result);
parameters.Token = responseValues[OAuthBase.OAuthTokenKey];
parameters.TokenSecret = responseValues[OAuthBase.OAuthTokenSecretKey];
}
/// <summary>
/// a constructor for 3-legged OAuth
/// </summary>
/// <param name="applicationName">The name of the application</param>
/// <param name="consumerKey">the consumerKey to use</param>
/// <param name="consumerSecret">the consumerSecret to use</param>
/// <param name="token">The token to be used</param>
/// <param name="tokenSecret">The tokenSecret to be used</param>
/// <returns></returns>
public OAuth3LeggedAuthenticator(string applicationName,
string consumerKey,
string consumerSecret,
string token,
string tokenSecret,
string scope,
string signatureMethod)
: base(applicationName, consumerKey, consumerSecret) {
this.parameters = new OAuthParameters() { ConsumerKey = consumerKey, ConsumerSecret = consumerSecret, Token = token, TokenSecret = tokenSecret, Scope = scope, SignatureMethod = signatureMethod };
}
/// <summary>
/// a constructor for 2-legged OAuth
/// </summary>
/// <param name="applicationName">The name of the application</param>
/// <param name="consumerKey">the consumerKey to use</param>
/// <param name="consumerSecret">the consumerSecret to use</param>
/// <param name="user">the username to use</param>
/// <param name="domain">the domain to use</param>
/// <returns></returns>
public OAuth2LeggedAuthenticator(
string applicationName,
string consumerKey,
string consumerSecret,
string user,
string domain,
string signatureMethod)
: base(applicationName, consumerKey, consumerSecret) {
this.oAuthUser = user;
this.oAuthDomain = domain;
this.parameters = new OAuthParameters() { ConsumerKey = consumerKey, ConsumerSecret = consumerSecret, SignatureMethod = signatureMethod };
}
