public static User loginUser(string username, string password)
{
try
{
var query = from user in dataModel.Users
where user.UserName == username && user.Password == password
select user;
int count = query.Count();
if (count == 0)
{
// User does not exist
return(null);
}
else if (count == 1)
{
SmartNewspaper.User loggedinUser = query.First();
return(new User()
{
UserName = loggedinUser.UserName,
Password = loggedinUser.Password,
FirstName = loggedinUser.FirstName,
LastName = loggedinUser.LastName,
UserPic = loggedinUser.UserPic,
Email = loggedinUser.Email,
UserID = loggedinUser.UserID
});
}
else
{
throw new Exception("More than 1 user with the same username.");
}
}
catch (Exception ex)
{
throw ex;
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["code"] != null)
{
string accessCode = Request.QueryString["code"].ToString();
var fb = new FacebookClient();
// throws OAuthException
dynamic result = fb.Post("oauth/access_token", new
{
client_id = "631763456879630",
client_secret = "0377de47eb135e4453dba95ff6331219",
redirect_uri = HelperClass.rootURL + "/Users/FacebookLogin.aspx",
code = accessCode
});
var accessToken = result.access_token;
var expires = result.expires;
Session["accessToken"] = accessToken;
Session["expries"] = expires;
fb.AccessToken = accessToken;
// Retrieving basic information about the user
dynamic info = fb.Get("me");
dynamic info_pic = fb.Get("me/picture?redirect=0&type=large");
// Extracting the data
SmartNewspaper.User fbUser = new SmartNewspaper.User()
{
FirstName = info.first_name,
LastName = info.last_name,
Password = "",
Email = info.email,
UserName = info.email,
UserPic = info_pic.data.url
};
// If the user is already registered, log him in
if (HelperClass.usernameExists(fbUser.UserName))
{
User loggedInUser = HelperClass.loginUser(fbUser.UserName, fbUser.Password);
HttpCookie cookie = HelperClass.authorizeUser(loggedInUser);
Response.Cookies.Add(cookie);
Response.Redirect(HelperClass.rootURL);
return;
}
else
{
// else, extract the needed data, register him, then log him in
#region Retrieving Liked Pages
//dynamic likedPages_JSON = fb.Get("me/likes?limit=1000&fields=name,category&&locale=ar_AR");
//List<FacebookPage> listOfFacebookPages = new List<FacebookPage>();
//foreach (var page in likedPages_JSON.data)
//{
// listOfFacebookPages.Add(new FacebookPage()
// {
// Name = page.name,
// Category = page.category
// });
//}
#endregion
#region Retrieving Last 20 Posts
//dynamic last20Posts = fb.Get("me/posts?limit=50");
//List<FacebookPost> listOfFacebookPosts = new List<FacebookPost>();
//foreach (var post in last20Posts.data)
//{
// if (post.story == null)
// {
// listOfFacebookPosts.Add(new FacebookPost()
// {
// message = post.message,
// link = post.link,
// status_type = post.status_type,
// type = post.type
// });
// }
//}
#endregion
#region making the User_Profile object and adding it to the User object
//FacebookData fbData_Csharp = new FacebookData()
//{
// likedPages = listOfFacebookPages,
// recentPosts = listOfFacebookPosts
//};
//string fbData_JSON = JsonConvert.SerializeObject(fbData_Csharp).ToString();
//fbUser.FacebookProfile = fbData_JSON;
#endregion
#region Registering the user
try
{
fbUser.UserName = fbUser.UserName.ToLower();
iEntities entity = HelperClass.dataModel;
entity.Users.Add(fbUser);
entity.SaveChanges();
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
throw ex;
}
#endregion
#region Logging the user in
User loggedInUser = HelperClass.loginUser(fbUser.UserName, fbUser.Password);
HttpCookie cookie = HelperClass.authorizeUser(loggedInUser);
Response.Cookies.Add(cookie);
Response.Redirect(HelperClass.rootURL);
#endregion
}
}
}
