protected void Page_Load(object sender, EventArgs e)
{
faces.Visible = _showFaces;
string fbRedirect = "http://" + Request.Url.Host + "/Login.aspx?step=fb";
//determine returl url
string returnFromLoginUrl = "";
if (Request["fbreturn"] != null)
{
returnFromLoginUrl = Request["fbreturn"];
}
else if (Request["return"] != null)
{
returnFromLoginUrl = Request["return"];
}
else
{
returnFromLoginUrl = Utils.GetLoginReturnUrl(HttpContext.Current);
}
if (returnFromLoginUrl != "")
{
fbRedirect = fbRedirect + "&fbreturn=" + Server.UrlEncode(returnFromLoginUrl);
//tilføj return url, så den huskes også via ture over facebook.
//fbLink.NavigateUrl = "https://www.facebook.com/dialog/oauth?client_id=" + Facebook.AppID + "&redirect_uri=" + Server.UrlEncode( + "&response_type=code&scope=email";
}
fbLink.NavigateUrl = "https://www.facebook.com/dialog/oauth?client_id=" + Facebook.AppID + "&redirect_uri=" + Server.UrlEncode(fbRedirect) + "&response_type=code&scope=email";
//Response.Write(fbLink.NavigateUrl);
string accessToken = null;
if ((Request["code"] != null) && (Request["step"] == "fb"))
{
accessToken = Facebook.GetAccessToken(Request["code"], fbRedirect);
}
if (accessToken != null)
{
//gem cookie
HttpCookie aTokenCookie = new HttpCookie(Facebook.CookieID, accessToken);
aTokenCookie.Expires = DateTime.Now.AddMonths(1);
Response.SetCookie(aTokenCookie);
long facebookUID = Facebook.GetFacebookUserId(accessToken);
if (facebookUID == 0)
{
Response.Write("Could not determine facebook UID from code: " + Request["code"] + "\n with token: " + accessToken);
}
if (facebookUID != 0)
{
object YafUserID = Facebook.GetYafUser(facebookUID);
MembershipUser user = null;
if (YafUserID != null)
{
//log eksisterende fb bruger ind
user = Membership.GetUser(YafUserID);
DoLogin(user, false);
}
else
{
user = Membership.GetUser();
if (user != null)
{
//Der er en bruger logget ind, opret facebook forbindelse til den.
Facebook.ConnectProfileToFB(user.ProviderUserKey.ToString(), facebookUID);
DoLogin(user, false);
}
else
{
Facebook.FbUserInfo fbUserInfo = Facebook.GetUserInfo(accessToken);
if (fbUserInfo == null)
{
Response.Write("Could not get necessary user information from Facebook.");
return;
}
MembershipUserCollection members = Membership.FindUsersByEmail(fbUserInfo.email);
MembershipUser[] membersArr = new MembershipUser[members.Count];
members.CopyTo(membersArr, 0);
if (members.Count > 0)
{
//forbind eksisterende bruger til facebook profil
user = membersArr[0];
Facebook.ConnectProfileToFB(user.ProviderUserKey.ToString(), facebookUID);
//log ind
DoLogin(user, false);
}
else
{
//opret ny bruger, og lav fb forbindelse
try
{
user = Facebook.CreateNewFbUser(fbUserInfo);
}
catch (MembershipCreateUserException MemberShipException)
{
Response.Write(Registration.GetErrorMessage(MemberShipException.StatusCode, fbUserInfo.email));
return;
}
DoLogin(user, true);
}
}
}
}
}
}
