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prabirshrestha/AccountController.cs

Created July 5, 2011 18:11
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Facebook Connect with ASP.NET MVC
Raw
AccountController.cs
public class AccountController : Controller
{
public ActionResult Login(string returnUrl, string scope)
{
if (!Url.IsLocalUrl(returnUrl))
{
returnUrl = "/";
}
ViewData["returnUrl"] = returnUrl;
ViewData["scope"] = scope;
return View();
}
}
Raw
FacebookJsAuthorizeAttribute.cs
public class FacebookJsAuthorizeAttribute : FacebookAuthorizeAttribute
{
public override void OnAuthorization(AuthorizationContext filterContext, IFacebookApplication facebookApplication)
{
var authorizer = new FacebookWebContext(facebookApplication, filterContext.HttpContext);
if (!string.IsNullOrEmpty(Permissions) && Permissions.IndexOf(" ") != -1)
{
throw new ArgumentException("Permissions cannot contain whitespace.");
}
if (!authorizer.IsAuthorized(string.IsNullOrEmpty(Permissions) ? null : Permissions.Split(',')))
{
var sb = new StringBuilder();
sb.Append("~/Account/Login");
sb.AppendFormat("?returnUrl={0}", HttpUtility.UrlEncode(filterContext.RequestContext.HttpContext.Request.RawUrl));
sb.AppendFormat("&scope={0}", HttpUtility.UrlDecode(Permissions));
filterContext.Result = new RedirectResult(sb.ToString());
}
}
}
Raw
Login.cshtml
<div id="fb-root">
</div>
<script src="http://connect.facebook.net/en_US/all.js" type="text/javascript"></script>
<script type="text/javascript">
FB.init({
appId: '@Facebook.FacebookApplication.Current.AppId', cookie: true, status: true, xfbml: true
}, "/xd_receiver.htm");
FB.Event.subscribe('auth.login', function () {
window.location = '@ViewData["returnUrl"]';
});
</script>
<fb:login-button @if (!string.IsNullOrWhiteSpace((string)ViewData["scope"])){<text>perms="@ViewData["scope"]"</text>}>Login to Facebook</fb:login-button>
Raw
xd_receiver.htm
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><body> <script src="http://static.ak.connect.facebook.com/js/api_lib/v0.4/XdCommReceiver.js" type="text/javascript"></script></body></html>
@prabirshrestha
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make sure to add the following in html tag of the page

<html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml">

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