public void GetUser(string db)
{
user = new UserProfile();
//Check if there is a lid in the querystring - then set the look.id
if (Request.QueryString["lid"] != null)
{
this.Session["lid"] = long.Parse(Request.QueryString["lid"]);
}
else if (Request.QueryString["pid"] != null)
{
long pid = long.Parse(Request.QueryString["pid"]);
//Find a look with that product id
Look look = Look.GetLookByProductId(pid, db);
this.Session["lid"] = look.id;
}
string sid = string.Empty;
if (this.Session["lid"] != null)
{
sid = this.Session["lid"].ToString();
}
//Get the fb-connected user id
if (user.userId == 0)
{
//Check if it's the fb Crawler then skip authentication
if (Request.UserAgent == "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)")
{
user = UserProfile.GetUserProfileById(3, db);
}
else if (this.Session["access_token"] == null)
{
if (Request.QueryString["error_code"] != null)
{
Response.Write(Request.QueryString["error_string"]);
return;
}
if (Request.QueryString["code"] == null)
{
//means the user is not authorized yet from fb - redirect to login via fb
string redirectUrl = FacebookHelper.GetCode(sid);
Response.Redirect(redirectUrl);
}
else
{
try
{
//if code exists - check for state for lid
if (Request.QueryString["state"] != null)
{
long state = long.Parse(Request.QueryString["state"]);
if (state != 0)
{
this.Session["lid"] = state;
}
}
string userReferral = "Unknown";
if (this.Request.Cookies["__userReferralid"] != null)
{
userReferral = this.Request.Cookies["__userReferralid"].Value;
}
string ipAddress = WebHelper.GetIpAddress(this.Request);
string userAgent = this.Request.UserAgent.ToString();
user = FacebookHelper.GetUser(Request.QueryString["code"], userReferral, db);
this.Session["access_token"] = user.accessToken;
this.Session["user"] = user;
// create user cookie
HttpCookie userid = new HttpCookie("__userid");
userid.Value = user.userId.ToString();
userid.Expires = DateTime.UtcNow.AddDays(14);
Response.Cookies.Add(userid);
// create authentication cookie
HttpCookie auth = new HttpCookie("__auth");
auth.Value = WebHelper.CreateAuthString(user.userId);
auth.Expires = DateTime.UtcNow.AddDays(14);
Response.Cookies.Add(auth);
}
catch (Facebook.FacebookOAuthException ex)
{
if (ex.ErrorCode >= 100 && ex.ErrorCode < 200) // token expired or app unistalled
{
//code might have expired - try again
string redirectUrl = FacebookHelper.GetCode(sid);
Response.Redirect(redirectUrl);
}
}
}
}
else
{
user = FacebookHelper.GetUserFromToken(this.Session["access_token"].ToString(), db);
}
}
}
