/// <summary>
/// After the user Authorizes the app, Twitter will
/// redirect to the callback url, provided during
/// BeginAuthorization. When redirecting, Twitter will
/// also provide oauth_verifier and oauth_token
/// parameters. This method uses those parameters to
/// request an access token, which is used automatically
/// by LINQ to Twitter when executing queries.
/// </summary>
/// <param name="callback">URL that Twitter redirected to after authorization</param>
/// <returns>True if successful</returns>
public bool CompleteAuthorization(Uri callback)
{
if (callback == null)
{
throw new ArgumentNullException("callback", "You must pass in the callback that Twitter returned after authentication.");
}
if (IsAuthorized)
{
return(true);
}
string verifier = OAuthTwitter.GetUrlParamValue(callback.Query, "oauth_verifier");
if (verifier != null)
{
string oAuthToken = OAuthTwitter.GetUrlParamValue(callback.Query, "oauth_token");
string screenName;
string userID;
OAuthTwitter.AccessTokenGet(oAuthToken, verifier, OAuthAccessTokenUrl, string.Empty, out screenName, out userID);
ScreenName = screenName;
UserId = userID;
Credentials.OAuthToken = OAuthTwitter.OAuthToken;
Credentials.AccessToken = OAuthTwitter.OAuthTokenSecret;
Credentials.ScreenName = screenName;
Credentials.UserId = userID;
}
return(IsAuthorized);
}
/// <summary>
/// Asynchronously finishes the authorization process
/// </summary>
/// <param name="callback">Callback Url that Twitter has added parameters to</param>
/// <param name="authorizationCompleteCallback">Action you provide for when authorization completes.</param>
public void CompleteAuthorize(Uri callback, Action <TwitterAsyncResponse <UserIdentifier> > authorizationCompleteCallback)
{
if (IsAuthorized)
{
return;
}
const int QueryPart = 1;
string[] callbackParts = callback.OriginalString.Split('?');
if (callbackParts.Length == 2)
{
string oauthToken = OAuthTwitter.GetUrlParamValue(callbackParts[QueryPart], "oauth_token");
Credentials.OAuthToken = oauthToken;
OAuthTwitter.OAuthToken = oauthToken;
// we have to split on # because Twitter appends #PageName at the end of the url,
// which identifies the Silverlight page to navigate to, but is not part of the verifier
string verifier =
OAuthTwitter
.GetUrlParamValue(callbackParts[QueryPart], "oauth_verifier")
.Split('#')[0];
if (verifier != null)
{
OAuthTwitter.GetAccessTokenAsync(verifier, new Uri(OAuthAccessTokenUrl), null, authorizationCompleteCallback);
}
}
}
/// <summary>
/// Synchronous authorization
/// </summary>
public void Authorize()
{
if (IsAuthorized)
{
return;
}
var xauthCredentials = Credentials as XAuthCredentials;
string postData =
"x_auth_username="******"&" +
"x_auth_password="******"&" +
"x_auth_mode=client_auth";
string screenName;
string userID;
OAuthTwitter.PostAccessToken(OAuthAccessTokenUrl, postData, out screenName, out userID);
ScreenName = screenName;
UserId = userID;
Credentials.OAuthToken = OAuthTwitter.OAuthToken;
Credentials.AccessToken = OAuthTwitter.OAuthTokenSecret;
}
/// <summary>
/// OAuth Get
/// </summary>
/// <param name="request">Request details</param>
/// <returns>Request to be sent to Twitter</returns>
public WebRequest Get(Request request)
{
string outUrl;
string queryString;
OAuthTwitter.GetOAuthQueryString(HttpMethod.GET, request, string.Empty, out outUrl, out queryString);
#if SILVERLIGHT
var fullUrl = ProxyUrl + request.FullUrl;
var req = WebRequest.Create(fullUrl) as HttpWebRequest;
req.Headers[HttpRequestHeader.Authorization] = new OAuthTwitter().PrepareAuthHeader(queryString);
InitializeRequest(req);
#else
var req = WebRequest.Create(request.FullUrl) as HttpWebRequest;
if (req != null)
{
req.Headers[HttpRequestHeader.Authorization] = new OAuthTwitter().PrepareAuthHeader(queryString, request);
InitializeRequest(req);
}
#endif
return(req);
}
/// <summary>
/// Synchronous authorization
/// </summary>
public void Authorize()
{
if (IsAuthorized)
{
return;
}
var request = new Request(OAuthAccessTokenUrl);
var xauthCredentials = Credentials as XAuthCredentials;
var postData = new Dictionary <string, string>();
postData.Add("x_auth_username", xauthCredentials.UserName);
postData.Add("x_auth_password", xauthCredentials.Password);
postData.Add("x_auth_mode", "client_auth");
string screenName;
string userID;
OAuthTwitter.PostAccessToken(request, postData, out screenName, out userID);
ScreenName = screenName;
UserId = userID;
Credentials.OAuthToken = OAuthTwitter.OAuthToken;
Credentials.AccessToken = OAuthTwitter.OAuthTokenSecret;
Credentials.ScreenName = screenName;
Credentials.UserId = userID;
}
/// <summary>
/// OAuth Post
/// </summary>
/// <param name="request">The request with the endpoint URL and the parameters to
/// include in the POST entity. Must not be null.</param>
/// <param name="postData">Hash of parameters</param>
/// <returns>request to send</returns>
public virtual HttpWebRequest PostRequest(Request request, IDictionary <string, string> postData)
{
var auth = OAuthTwitter.GetOAuthQueryStringForPost(request, postData);
#if SILVERLIGHT
var req = HttpWebRequest.Create(
ProxyUrl + request.Endpoint +
(string.IsNullOrEmpty(ProxyUrl) ? "?" : "&") +
request.QueryString) as HttpWebRequest;
#else
var req = WebRequest.Create(request.Endpoint) as HttpWebRequest;
#endif
if (req != null)
{
#if !SILVERLIGHT && !NETFX_CORE
req.ServicePoint.Expect100Continue = false;
#endif
req.Method = HttpMethod.POST.ToString();
req.Headers[HttpRequestHeader.Authorization] = auth;
#if !WINDOWS_PHONE
req.ContentType = "application/x-www-form-urlencoded";
#endif
#if !WINDOWS_PHONE && !NETFX_CORE
req.ContentLength = 0;
#endif
InitializeRequest(req);
}
return(req);
}
/// <summary>
/// Async OAuth Post
/// </summary>
/// <param name="url">Twitter Command</param>
/// <param name="args">Command Arguments</param>
/// <returns>HttpWebRequest for post</returns>
public HttpWebRequest PostAsync(string url, Dictionary <string, string> args)
{
string paramsJoined =
string.Join(
"&",
(from param in args
where !string.IsNullOrEmpty(param.Value)
select param.Key + "=" + OAuthTwitter.TwitterParameterUrlEncode(param.Value))
.ToArray());
//url += "?" + paramsJoined;
var req = WebRequest.Create(
ProxyUrl + url +
(string.IsNullOrEmpty(ProxyUrl) ? "?" : "&") +
paramsJoined)
as HttpWebRequest;
//req.ServicePoint.Expect100Continue = false;
req.Method = HttpMethod.POST.ToString();
req.Headers[HttpRequestHeader.Authorization] = OAuthTwitter.GetOAuthQueryStringForPost(url + "?" + paramsJoined);
req.ContentLength = 0;
InitializeRequest(req);
return(req);
}
/// <summary>
/// Asynchronously finishes the authorization process
/// </summary>
/// <param name="pin">Set this to the 7-digit PIN that Twitter provides after the user authorizes your application</param>
/// <param name="authorizationCompleteCallback">Action you provide for when authorization completes.</param>
public void CompleteAuthorize(string pin, Action <TwitterAsyncResponse <UserIdentifier> > authorizationCompleteCallback)
{
if (IsAuthorized)
{
return;
}
if (pin == null)
{
throw new ArgumentNullException("pin", "pin is required");
}
OAuthTwitter.GetAccessTokenAsync(
pin, new Uri(OAuthAccessTokenUrl), "oob", AuthAccessType.NoChange,
resp =>
{
Credentials.OAuthToken = OAuthTwitter.OAuthToken;
Credentials.AccessToken = OAuthTwitter.OAuthTokenSecret;
UserIdentifier user = resp.State;
if (user != null)
{
Credentials.ScreenName = user.ScreenName;
Credentials.UserId = user.UserID;
}
authorizationCompleteCallback(resp);
});
}
/// <summary>
/// Asynchronously performs authorization for Silverlight apps
/// </summary>
/// <param name="authorizationCompleteCallback">Action you provide for when authorization completes.</param>
public void BeginAuthorize(Action <TwitterAsyncResponse <UserIdentifier> > authorizationCompleteCallback)
{
if (IsAuthorized)
{
return;
}
var request = new Request(OAuthAccessTokenUrl);
var xauthCredentials = Credentials as XAuthCredentials;
var postData = new Dictionary <string, string>();
postData.Add("x_auth_username", xauthCredentials.UserName);
postData.Add("x_auth_password", xauthCredentials.Password);
postData.Add("x_auth_mode", "client_auth");
OAuthTwitter.PostAccessTokenAsync(
request,
postData,
resp =>
{
Credentials.OAuthToken = OAuthTwitter.OAuthToken;
Credentials.AccessToken = OAuthTwitter.OAuthTokenSecret;
UserIdentifier user = resp.State;
if (user != null)
{
Credentials.ScreenName = user.ScreenName;
Credentials.UserId = user.UserID;
}
authorizationCompleteCallback(resp);
});
}
public void FilterRequestParameters_Splits_Url_Properly()
{
var oaTwit = new OAuthTwitter();
var fullUrl = new Uri("http://www.mySite.com?oauth_token=123&p1=v1");
string filteredUrl = oaTwit.FilterRequestParameters(fullUrl);
Assert.Equal("http://www.mysite.com/?p1=v1", filteredUrl);
}
public HttpWebRequest Post(string url)
{
var req = WebRequest.Create(ProxyUrl + url) as HttpWebRequest;
req.Method = HttpMethod.POST.ToString();
req.Headers[HttpRequestHeader.Authorization] = OAuthTwitter.GetOAuthQueryStringForPost(url);
InitializeRequest(req);
return(req);
}
/// <summary>
/// First part of the authorization sequence that:
/// 1. Obtains a request token and then
/// 2. Redirects to the Twitter authorization page
/// </summary>
/// <param name="forceLogin">Forces user to login for Sign-In with Twitter scenarios</param>
/// <param name="callback">This is where you want Twitter to redirect to after authorization</param>
public void BeginAuthorization(Uri callback, bool forceLogin)
{
if (IsAuthorized)
{
return;
}
string callbackStr = OAuthTwitter.FilterRequestParameters(callback);
string link = OAuthTwitter.AuthorizationLinkGet(OAuthRequestTokenUrl, OAuthAuthorizeUrl, callbackStr, forceLogin, AuthAccessType);
PerformRedirect(link);
}
/// <summary>
/// Asynchronously starts the authorization process
/// </summary>
/// <param name="authorizationCompleteCallback">Action you provide for when authorization completes.</param>
public void BeginAuthorize(Uri callback, Action <TwitterAsyncResponse <object> > authorizationCompleteCallback)
{
if (IsAuthorized)
{
return;
}
if (PerformRedirect == null)
{
throw new InvalidOperationException("GoToTwitterAuthorization must have a handler before calling BeginAuthorize.");
}
OAuthTwitter.GetRequestTokenAsync(new Uri(OAuthRequestTokenUrl), new Uri(OAuthAuthorizeUrl), callback.ToString(), AuthAccessType, false, PerformRedirect, authorizationCompleteCallback);
}
/// <summary>
/// Asynchronously finishes the authorization process
/// </summary>
/// <param name="pin">Set this to the 7-digit PIN that Twitter provides after the user authorizes your application</param>
/// <param name="authorizationCompleteCallback">Action you provide for when authorization completes.</param>
public void CompleteAuthorize(string pin, Action <TwitterAsyncResponse <UserIdentifier> > authorizationCompleteCallback)
{
if (IsAuthorized)
{
return;
}
if (pin == null)
{
throw new ArgumentNullException("pin", "pin is required");
}
OAuthTwitter.GetAccessTokenAsync(pin, new Uri(OAuthAccessTokenUrl), "oob", authorizationCompleteCallback);
}
/// <summary>
/// Asynchronously starts the authorization process
/// </summary>
/// <param name="authorizationCompleteCallback">Action you provide for when authorization completes.</param>
public void BeginAuthorize(Action <TwitterAsyncResponse <object> > authorizationCompleteCallback)
{
if (IsAuthorized)
{
return;
}
if (GoToTwitterAuthorization == null)
{
throw new InvalidOperationException("GoToTwitterAuthorization must have a handler before calling BeginAuthorize.");
}
OAuthTwitter.GetRequestTokenAsync(new Uri(OAuthRequestTokenUrl), new Uri(OAuthAuthorizeUrl), "oob", false, GoToTwitterAuthorization, authorizationCompleteCallback);
}
/// <summary>
/// Retrieves access token from Twitter.
/// Call this after calling GetAuthorizationPageLink()
/// </summary>
/// <param name="oAuthToken">Auth Token from call to GetAuthorizationPageLink</param>
public void RetrieveAccessToken(string oAuthToken)
{
if (string.IsNullOrEmpty(oAuthToken))
{
throw new ArgumentException("Invalid OAuth Token.", "oAuthToken");
}
string screenName;
string userID;
OAuthTwitter.AccessTokenGet(oAuthToken, OAuthAccessTokenUrl, out screenName, out userID);
OAuthRequestScreenName = screenName;
OAuthRequestUserID = userID;
}
/// <summary>
/// Asynchronously performs authorization for Silverlight apps
/// </summary>
/// <param name="authorizationCompleteCallback">Action you provide for when authorization completes.</param>
public void BeginAuthorize(Action <TwitterAsyncResponse <UserIdentifier> > authorizationCompleteCallback)
{
if (IsAuthorized)
{
return;
}
var xauthCredentials = Credentials as XAuthCredentials;
string postData =
"x_auth_username="******"&" +
"x_auth_password="******"&" +
"x_auth_mode=client_auth";
string url = OAuthAccessTokenUrl + "?" + postData;
OAuthTwitter.PostAccessTokenAsync(new Uri(url), postData, authorizationCompleteCallback);
}
/// <summary>
/// Perform authorization
/// </summary>
/// <param name="forceLogin">Force the user to enter their name.</param>
public void Authorize(bool forceLogin)
{
if (IsAuthorized)
{
return;
}
if (GetPin == null)
{
throw new InvalidOperationException("GetPin must have a handler before calling Authorize.");
}
if (GoToTwitterAuthorization == null)
{
throw new InvalidOperationException("GoToTwitterAuthorization must have a handler before calling Authorize.");
}
string link = OAuthTwitter.AuthorizationLinkGet(OAuthRequestTokenUrl, OAuthAuthorizeUrl, "oob", forceLogin, AuthAccessType);
GoToTwitterAuthorization(link);
string verifier = GetPin();
// TODO: Refactor to share similar logic with WebAuthorizer
string oAuthToken =
(from nameValPair in new Uri(link).Query.TrimStart('?').Split('&')
let pair = nameValPair.Split('=')
where pair[0] == "oauth_token"
select pair[1])
.SingleOrDefault();
string screenName;
string userID;
OAuthTwitter.AccessTokenGet(oAuthToken, verifier, OAuthAccessTokenUrl, string.Empty, out screenName, out userID);
ScreenName = screenName;
UserId = userID;
Credentials.OAuthToken = OAuthTwitter.OAuthToken;
Credentials.AccessToken = OAuthTwitter.OAuthTokenSecret;
Credentials.ScreenName = screenName;
Credentials.UserId = userID;
}
protected OAuthAuthorizer()
{
OAuthRequestTokenUrl = "https://api.twitter.com/oauth/request_token";
OAuthAuthorizeUrl = "https://api.twitter.com/oauth/authorize";
OAuthAccessTokenUrl = "https://api.twitter.com/oauth/access_token";
OAuthTwitter = new OAuthTwitter();
#if SILVERLIGHT && !WINDOWS_PHONE
if (!Application.Current.IsRunningOutOfBrowser)
{
ProxyUrl =
Application.Current.Host.Source.Scheme + "://" +
Application.Current.Host.Source.Host + ":" +
Application.Current.Host.Source.Port + "/LinqToTwitterProxy.ashx?url=";
}
#else
ProxyUrl = string.Empty;
#endif
}
protected OAuthAuthorizer()
{
OAuthRequestTokenUrl = "https://api.twitter.com/oauth/request_token";
OAuthAuthorizeUrl = "https://api.twitter.com/oauth/authorize";
OAuthAccessTokenUrl = "https://api.twitter.com/oauth/access_token";
OAuthTwitter = new OAuthTwitter();
#if SILVERLIGHT && !WINDOWS_PHONE
if (!Application.Current.IsRunningOutOfBrowser)
{
ProxyUrl =
Application.Current.Host.Source.Scheme + "://" +
Application.Current.Host.Source.Host + ":" +
Application.Current.Host.Source.Port + "/LinqToTwitterProxy.ashx?url=";
}
#else
ProxyUrl = string.Empty;
#endif
}
/// <summary>
/// OAuth Get
/// </summary>
/// <param name="url">Twitter Query</param>
/// <returns>Request to be sent to Twitter</returns>
public WebRequest Get(string url)
{
string outUrl;
string queryString;
OAuthTwitter.GetOAuthQueryString(HttpMethod.GET, url, string.Empty, out outUrl, out queryString);
#if SILVERLIGHT
var req = HttpWebRequest.Create(
ProxyUrl + url +
(string.IsNullOrEmpty(ProxyUrl) ? "?" : "&") +
queryString);
#else
var req = HttpWebRequest.Create(outUrl + "?" + queryString) as HttpWebRequest;
//req.Headers[HttpRequestHeader.Authorization] = PrepareAuthHeader(queryString);
InitializeRequest(req);
#endif
return(req);
}
/// <summary>
/// Async OAuth Post
/// </summary>
/// <param name="request">The request with the endpoint URL and the parameters to
/// include in the POST entity. Must not be null.</param>
/// <param name="postData">Hash of parameters</param>
/// <returns>HttpWebRequest for post</returns>
public virtual HttpWebRequest PostAsync(Request request, IDictionary <string, string> postData)
{
var auth = OAuthTwitter.GetOAuthQueryStringForPost(request, postData);
var req = WebRequest.Create(
ProxyUrl + request.Endpoint +
(string.IsNullOrEmpty(ProxyUrl) ? "?" : "&") +
request.QueryString)
as HttpWebRequest;
if (req != null)
{
req.Method = HttpMethod.POST.ToString();
req.Headers[HttpRequestHeader.Authorization] = auth;
#if !WINDOWS_PHONE && !NETFX_CORE
req.ContentLength = 0;
#endif
InitializeRequest(req);
}
return(req);
}
/// <summary>
/// Get the link to Twitter's authorization page for this application.
/// </summary>
/// <param name="readOnly">true for read-only, otherwise read/Write</param>
/// <returns>The url with a valid request token, or a null string.</returns>
public string GetAuthorizationPageLink(bool readOnly, bool forceLogin)
{
// TODO: setting readOnly to true doesn't seem to be working; no Twitter API documentation available; check again later - Joe
// TODO: setting forceLogin to true doesn't seem to be working; no Twitter API documentation available; fix for bug in Twitter API pending; check again later - Joe
return(OAuthTwitter.AuthorizationLinkGet(OAuthRequestTokenUrl, OAuthAuthorizeUrl, readOnly, forceLogin));
}
