How can we get the user id ( something like 1hRVUAus5JxCuZfhxPOjmKCtoZoO22ps0FBGKiM) of a skype contact using the skype username/handle
yes, Jyothis Jose you can get userId and userName using following code in c#
if(activity.From.Name != null)
{
string userName= activity.From.Name;
string userID=activity.From.Id;
//Perform your action
}
Related
I have tried to implement login page in ASP.NET Core MVC and using postgresql as database.
It should check whether user exits in the database table of postgresql and verify, so what is the query to search for user in database and made them sign in?
I have written my code like this:
public IActionResult Login(string seller_email, string seller_password)
{
using var connection = new NpgsqlConnection(connString);
connection.Open();
string main_query = String.Format(#"select exists(select 1 from public.""sellers"" where ""seller_email""='{0}')", seller_email);
using var command_main = new NpgsqlCommand(main_query, connection);
int result_main = command_main.ExecuteNonQuery();
if (result_main < 0)
{
return View(nameof(Create));
}
else
{
return View(nameof(Sign));
}
}
There is a seller table in the database, so just have to check seller exists or not - if exists the have to create a view for it
You are doing a select query, so you must use a command.ExecuteReader.
The ExecuteNonQuery is to be used with statements that update/insert/delete records.
BUT, most importantly, don't concatenate user submitted values into the query string, as it opens the door to SQL injections. Instead, used a parameter.
See the getting started doc for a simple example.
I see many similar questions, but not a single good answer. I'm using Forms Authentication and I would like to find AD account (domain/username) of the user that is currently logged in. I'm complete beginner in this field, and I would apriciate an example of how to do it. Thanks in advance.
I Used this to get my User Name of the user
username = (Session["UserName"].ToString()).Split('\\');
pUsername.InnerText = username[1];
try getting it from the session the one that is used for validation u can get that there
or u can do one thing is that get it from the database through SP on LoginClick store it in session and get it back where u need it.
I got it like this.
LP.UserName = UserName;
DataSet dsUserName = LBLL.validate_user(LP);
if (dsUserName.Tables[0].Rows.Count > 0)
{
Session["UserName"] = dsUserName.Tables[0].Rows[0]["userName"].ToString();
Session["entityUID"] = dsUserName.Tables[0].Rows[0]["entityUID"].ToString();
Response.Redirect("~/index.aspx", false);
}
else
{
lblMsg.Text = "Invalid Credentials. Please contact administrator!";
}
using System.Web.Security; // this will give you access to membership.
Inside your event:
// 2 examples:
bool loggedIn = User.Identity.IsAuthenticated;
string un = User.Identity.Name;
I have an MVC 5 demo application that uses asp.net security. Within that application I have 75+ user accounts.
The person who gives the demos left, so I'd like to be able to reset all of the passwords for all of the accounts without having to change the email on each account to my personal email and do them individually where a link would be sent to my personal email.
Is there a way I can type in the user name and new password and use built in IdentityUser functionality to reset the password?
Assuming your app is in standard MVC5 format, put this ViewResult into the Account controller:
[AllowAnonymous]
public async Task<ViewResult> ResetAllPasswords()
{
// Get a list of all Users
List<ApplicationUser> allUsers = await db.Users.ToListAsync();
// NOTE: make sure this password complies with the password requirements set up in Identity.Config
string newPassword = "YourNewPassword!";
int passwordChangeSuccess = 0;
int countUsers = 0;
// Loop through the list of Users
foreach (var user in allUsers)
{
// Get the User
ApplicationUser thisUser = await UserManager.FindByNameAsync(user.UserName);
// Generate a password reset token
string token = await UserManager.GeneratePasswordResetTokenAsync(thisUser.Id);
// Change the password, using the reset token
IdentityResult result = await UserManager.ResetPasswordAsync(thisUser.Id, token, newPassword);
// Record results (extend to taste)
if (result.Succeeded)
{
passwordChangeSuccess++;
}
countUsers++;
}
ViewBag.CountUsers = countUsers;
ViewBag.PasswordSuccess = passwordChangeSuccess;
return View();
}
and set up a new View with ViewBag.CountUsers and ViewBag.PasswordSuccess to check the results.
Then set up an ActionLink pointing to ResetAllPasswords in Account controller and press to go.
Obviously the formatting can be changed (maybe a form with a confirm instead, maybe with an input field to specify the password .. ), but the basic controller code should hopefully be good. And note the [AllowAnonymous] attribute is there just for one-off access - not a good idea to leave it there for anything more than testing!
This should reset all Users to the same password specified in the code.
yes in Account Controller just go to the forget Password function and change that code a little where first of all user search the email id and after that system send a mail to that user .
There just write down a code where user send mail to your specific email id then you can get that link in your account click that link and reset the Password
Using ASP.NET membership, if I want to get information for the current user, I can call MembershipUser.GetUser()
So, somehow the system must know the ID of the current user.
If this is correct, and all I want is the ID of the current user, is there a way to get it without returning all the user information from the database?
I know I can get the username of the current user using User.Identity.Name, but I need the ID.
The short answer is no you can't get only userID without retrieve whole user info when you use built-in membership provider, only by this
MembershipUser user = Membership.GetUser();
string UserID = user.ProviderUserKey.ToString();
But if you want to have method or property which retrieve only userID, you must re-implement your own membership provider or(it's simply) to implement IPrincipal interface
To return the UserId, use the command bellow in your controller:
User.Identity.GetUserId();
To return the UserName, use:
User.Identity.Name;
To return the user:
var user = db.Users.Find(User.Identity.GetUserId());
Please refer to the post: How to get current user, and how to use User class in MVC5?
As you've guessed, the Membership API doesn't support what you want out of the box. In the past, I've used a helper class instead of creating my own provider. In this case it's pretty simple, maybe something like this:
public static object GetUserId() {
return GetUserId(HttpContext.Current.User.Identity.Name, true);
}
public static object GetUserId(string userName) {
return GetUserId(userName, true);
}
public static object GetUserId(string userName, bool UpdateLastActivity) {
using (SqlConnection c = new SqlConnection(CONNECTION_STRING)) {
string sql = #"
DECLARE #UserId uniqueidentifier
SELECT #UserId=u.UserId
FROM dbo.aspnet_Applications AS a
,dbo.aspnet_Users AS u
,dbo.aspnet_Membership AS m
WHERE
a.LoweredApplicationName=LOWER(#ApplicationName)
AND u.ApplicationId=a.ApplicationId
AND u.LoweredUserName=LOWER(#UserName)
AND u.UserId=m.UserId;
IF #UserId IS NOT NULL AND #UpdateLastActivity=1
UPDATE dbo.aspnet_Users
SET LastActivityDate=#CurrentTimeUtc
WHERE UserId=#UserId;
SELECT #UserId
";
using (SqlCommand cmd = new SqlCommand(sql, c)) {
cmd.Parameters.AddWithValue("#ApplicationName", Roles.ApplicationName);
cmd.Parameters.AddWithValue("#UserName", userName);
cmd.Parameters.AddWithValue("#UpdateLastActivity", UpdateLastActivity);
cmd.Parameters.AddWithValue("#CurrentTimeUtc", DateTime.UtcNow);
object id = null;
c.Open();
id = cmd.ExecuteScalar();
return id != DBNull.Value ? id : null;
}
}
}
Above is pretty similar to what's done in the Membership API when calling GetUser()
You can use MembershipUser.UserName to get the user id or try calling Membership.GetUser(User.Identity.Name) and see if that works for you.
After looking into this further, it seems that the ASP.NET Membership API does not track the user ID after all. It must track just the user name (User.Identity.Name). The ID is not required because Membership.GetUser() can find a user from an ID or user name.
In fact, Membership.GetUser() must simply translate to Membership.GetUser(User.Identity.Name). Since it can obtain the current user from the user name, there is no longer any reason to assume that the current user ID is cached anywhere.
So it appears the ID is not loaded into memory, and the only way to obtain the ID is to load the data from the database (which means loading the entire user record when using the ASP.NET Membership API).
Consider
int userId = WebSecurity.CurrentUserId;
Credit: https://stackoverflow.com/a/15382691/1268910
I already have code which works fine, but for security reason I want to make other way of Auth.
In this case, user writes his username and password, but I want to make like "Allow demo.com to access your information's" click button.
How to change this code:
//Provide Login Information
Google.GData.Client.RequestSettings rsLoginInfo = new Google.GData.Client
.RequestSettings("", txtEmail.Text, txtPassword.Text);
rsLoginInfo.AutoPaging = true;
// Fetch contacts and dislay them in ListBox
Google.Contacts.ContactsRequest cRequest = new ContactsRequest(rsLoginInfo);
Google.GData.Client.Feed<Google.Contacts.Contact> feedContacts = cRequest
.GetContacts();
foreach (Google.Contacts.Contact gmailAddresses in feedContacts.Entries) {
Console.WriteLine("\t" + gmailAddresses.Title);
lstContacts.Items.Add(gmailAddresses.Title);
foreach (EMail emailId in gmailAddresses.Emails) {
Console.WriteLine("\t" + emailId.Address);
lstContacts.Items.Add(" " + emailId.Address);
}
}
It seems like you're trying to do 3-Legged OAuth. .NET samples for performing 3-Legged OAuth 1.0a are documented here:
http://code.google.com/apis/gdata/docs/auth/oauth.html#Examples