/// <summary>
/// Constructor with three parameters
/// </summary>
/// <param name="appId"></param>
/// <param name="extendedPermissions"></param>
/// <param name="logout"></param>
public FacebookForm(string appId, string[] extendedPermissions, bool logout)
{
var oauth = new FacebookOAuthClient { AppId = appId };
var loginParameters = new Dictionary<string, object>
{
{ "response_type", "token" },
{ "display", "popup" }
};
if (extendedPermissions != null && extendedPermissions.Length > 0)
{
var scope = new StringBuilder();
scope.Append(string.Join(",", extendedPermissions));
loginParameters["scope"] = scope.ToString();
}
var loginUrl = oauth.GetLoginUrl(loginParameters);
if (logout)
{
var logoutParameters = new Dictionary<string, object>
{
{ "next", loginUrl }
};
this.navigateUrl = oauth.GetLogoutUrl(logoutParameters);
}
else
{
this.navigateUrl = loginUrl;
}
InitializeComponent();
}
//
// GET: /Account/LogOff/
public ActionResult LogOff()
{
FormsAuthentication.SignOut();
var oAuthClient = new FacebookOAuthClient {RedirectUri = new Uri(LogoffUrl)};
var logoutUrl = oAuthClient.GetLogoutUrl();
return Redirect(logoutUrl.AbsoluteUri);
}
//
// GET: /Account/LogOff/
public ActionResult LogOff()
{
FormsAuthentication.SignOut();
var oAuthClient = new FacebookOAuthClient();
oAuthClient.RedirectUri = new Uri(ConfigurationManager.AppSettings["LogoffUrl"]);
var logoutUrl = oAuthClient.GetLogoutUrl();
return Redirect(logoutUrl.AbsoluteUri);
}
/// <summary>
/// Gets the login url.
/// </summary>
/// <param name="appId">
/// The app id.
/// </param>
/// <param name="redirectUri">
/// The redirect Uri.
/// </param>
/// <param name="extendedPermissions">
/// The extended permissions (scope).
/// </param>
/// <param name="logout">
/// Indicates whether to logout existing logged in user or not.
/// </param>
/// <param name="loginParameters">
/// The login parameters.
/// </param>
/// <returns>
/// The url to navigate.
/// </returns>
public static Uri GetLoginUrl(string appId, Uri redirectUri, string[] extendedPermissions, bool logout, IDictionary<string, object> loginParameters)
{
Contract.Requires(!string.IsNullOrEmpty(appId));
Contract.Ensures(Contract.Result<Uri>() != null);
var oauth = new FacebookOAuthClient { AppId = appId, RedirectUri = redirectUri };
var defaultLoginParameters = new Dictionary<string, object>
{
{ "response_type", "code" }, // make it "code" by default for security reasons.
#if WINDOWS_PHONE
{ "display", "touch" }
#else
{ "display", "popup" }
#endif
};
if (extendedPermissions != null && extendedPermissions.Length > 0)
{
defaultLoginParameters["scope"] = string.Join(",", extendedPermissions);
}
var mergedLoginParameters = FacebookUtils.Merge(defaultLoginParameters, loginParameters);
var loginUrl = oauth.GetLoginUrl(mergedLoginParameters);
Uri navigateUrl;
if (logout)
{
var logoutParameters = new Dictionary<string, object>
{
{ "next", loginUrl }
};
navigateUrl = oauth.GetLogoutUrl(logoutParameters);
}
else
{
navigateUrl = loginUrl;
}
return navigateUrl;
}
public ActionResult LogOff()
{
if (FacebookWebContext.Current.IsAuthenticated())
{
FacebookWebContext.Current.DeleteAuthCookie();
FacebookOAuthClient oauth = new FacebookOAuthClient(FacebookWebContext.Current.Settings);
var logoutUrl = oauth.GetLogoutUrl(new Dictionary<string, object> { { "next", Request.UrlReferrer.AbsoluteUri.ToString() } });
FormsService.SignOut();
return Redirect(logoutUrl.AbsoluteUri);
}
FormsService.SignOut();
return RedirectToAction("Login");
}
