//*************************************************************************
// Constructor: TwitterAuthorizationManager()
//
/// <summary>
/// Initializes a new instance of the <see
/// cref="TwitterAuthorizationManager" /> class.
/// </summary>
///
/// <param name="twitterAuthorizationControl">
/// The TwitterAuthorizationControl owned by the parent dialog. This class
/// manages the control's <see cref="TwitterAuthorizationControl.Status" />
/// property.
/// </param>
//*************************************************************************
public TwitterAuthorizationManager
(
TwitterAuthorizationControl twitterAuthorizationControl
)
{
m_oTwitterAuthorizationControl = twitterAuthorizationControl;
// If the user has already authorized, he doesn't need to do so again.
m_oTwitterAuthorizationControl.Status =
TwitterAccessToken.Exists() ?
TwitterAuthorizationStatus.HasTwitterAccountAuthorized :
TwitterAuthorizationStatus.HasTwitterAccountNotAuthorized;
AssertValid();
}
BeforeGetNetwork()
{
AssertValid();
// TwitterAccessToken caches the access token it reads from disk. Make
// sure the latest access token is read.
TwitterAccessToken oTwitterAccessToken = new TwitterAccessToken();
// A network should never be requested if the access token hasn't been
// saved yet.
String sToken, sSecret;
if (!oTwitterAccessToken.TryLoad(out sToken, out sSecret))
{
throw new Exception("Twitter access token not set.");
}
m_oTwitterUtil = new TwitterUtil(sToken, sSecret,
HttpNetworkAnalyzerBase.UserAgent,
HttpNetworkAnalyzerBase.HttpWebRequestTimeoutMs);
}
SetUp()
{
m_oTwitterAccessToken = new TwitterAccessToken();
DeleteAccessTokenFile();
}
AuthorizeIfRequested()
{
AssertValid();
switch (m_oTwitterAuthorizationControl.Status)
{
case TwitterAuthorizationStatus.HasTwitterAccountAuthorized:
return(true);
case TwitterAuthorizationStatus.HasTwitterAccountNotAuthorized:
TwitterAccessToken.Delete();
// Continue below.
break;
default:
Debug.Assert(false);
break;
}
// Get a Twitter request token.
oAuthTwitter oTwitterAuth = new oAuthTwitter(
HttpNetworkAnalyzerBase.UserAgent,
HttpNetworkAnalyzerBase.HttpWebRequestTimeoutMs);
Uri oAuthorizationUri = new Uri(oTwitterAuth.AuthorizationLinkGet());
String sRequestToken = HttpUtility.ParseQueryString(
oAuthorizationUri.Query)["oauth_token"];
Debug.Assert(!String.IsNullOrEmpty(sRequestToken));
// Open the Twitter authorization page.
Process.Start(oAuthorizationUri.ToString());
// Tell the user that the Twitter authorization page has been opened in
// a browser window, and get the PIN that Twitter provides after
// authorization is complete.
TwitterAuthorizingDialog oTwitterAuthorizingDialog =
new TwitterAuthorizingDialog();
if (oTwitterAuthorizingDialog.ShowDialog(
m_oTwitterAuthorizationControl.ParentForm) != DialogResult.OK)
{
return(false);
}
// Convert the request token to an access token.
oTwitterAuth.Token = sRequestToken;
oTwitterAuth.AccessTokenGet(
sRequestToken, oTwitterAuthorizingDialog.Pin);
Debug.Assert(!String.IsNullOrEmpty(oTwitterAuth.Token));
Debug.Assert(!String.IsNullOrEmpty(oTwitterAuth.TokenSecret));
// Save the access token.
TwitterAccessToken oTwitterAccessToken = new TwitterAccessToken();
oTwitterAccessToken.Save(oTwitterAuth.Token, oTwitterAuth.TokenSecret);
return(true);
}
BeforeGetNetwork()
{
AssertValid();
// TwitterAccessToken caches the access token it reads from disk. Make
// sure the latest access token is read.
TwitterAccessToken oTwitterAccessToken = new TwitterAccessToken();
// A network should never be requested if the access token hasn't been
// saved yet.
String sToken, sSecret;
if ( !oTwitterAccessToken.TryLoad(out sToken, out sSecret) )
{
throw new Exception("Twitter access token not set.");
}
m_oTwitterUtil = new TwitterUtil(sToken, sSecret,
HttpNetworkAnalyzerBase.UserAgent,
HttpNetworkAnalyzerBase.HttpWebRequestTimeoutMs);
}
AuthorizeIfRequested()
{
AssertValid();
switch (m_oTwitterAuthorizationControl.Status)
{
case TwitterAuthorizationStatus.NoTwitterAccount:
// Delete any access token that exists.
TwitterAccessToken.Delete();
return (true);
case TwitterAuthorizationStatus.HasTwitterAccountAuthorized:
return (true);
case TwitterAuthorizationStatus.HasTwitterAccountNotAuthorized:
TwitterAccessToken.Delete();
// Continue below.
break;
default:
Debug.Assert(false);
break;
}
// Get a Twitter request token.
oAuthTwitter oTwitterAuth = new oAuthTwitter(
HttpNetworkAnalyzerBase.UserAgent,
HttpNetworkAnalyzerBase.HttpWebRequestTimeoutMs);
Uri oAuthorizationUri = new Uri( oTwitterAuth.AuthorizationLinkGet() );
String sRequestToken = HttpUtility.ParseQueryString(
oAuthorizationUri.Query)["oauth_token"];
Debug.Assert( !String.IsNullOrEmpty(sRequestToken) );
// Open the Twitter authorization page.
Process.Start( oAuthorizationUri.ToString() );
// Tell the user that the Twitter authorization page has been opened in
// a browser window, and get the PIN that Twitter provides after
// authorization is complete.
TwitterAuthorizingDialog oTwitterAuthorizingDialog =
new TwitterAuthorizingDialog();
if (oTwitterAuthorizingDialog.ShowDialog(
m_oTwitterAuthorizationControl.ParentForm) != DialogResult.OK)
{
return (false);
}
// Convert the request token to an access token.
oTwitterAuth.Token = sRequestToken;
oTwitterAuth.AccessTokenGet(
sRequestToken, oTwitterAuthorizingDialog.Pin);
Debug.Assert( !String.IsNullOrEmpty(oTwitterAuth.Token) );
Debug.Assert( !String.IsNullOrEmpty(oTwitterAuth.TokenSecret) );
// Save the access token.
TwitterAccessToken oTwitterAccessToken = new TwitterAccessToken();
oTwitterAccessToken.Save(oTwitterAuth.Token, oTwitterAuth.TokenSecret);
return (true);
}
