public ActionResult <WebSessionModel> PostUserLogin([FromBody] PostUserLoginType data)
{
return(postUserLogin.Execute(data, _configuration["ConnectionStrings:DefaultConnection"]));
}
public static ActionResult <WebSessionModel> Execute(PostUserLoginType data, string connectionString)
{
try
{
using (var connection = new SqlConnection(connectionString))
{
// create command object
var command = new SqlCommand();
command.Connection = connection;
command.Connection.Open();
// get user with the same username as given value
command.CommandText = @$ "
SELECT users.id
, passwords.hashed_password
, passwords.salt
FROM users
JOIN passwords
ON users.id = passwords.user_id
WHERE users.username = '******'
AND passwords.expired IS NULL
";
var reader = command.ExecuteReader();
// if nothing was returned, user does not exist with given username
if (!reader.HasRows)
{
reader.Close();
return(new BadRequestResult());
}
// read returned row to get user id and password
reader.Read();
var userId = reader["id"].ToString();
var passwordSalt = reader["salt"].ToString();
var passwordHashed = reader["hashed_password"].ToString();
reader.Close();
// hash given password
var credentialsHashedPassword = UserController.ApplyHash(
UserController.DecodeSalt(passwordSalt),
data.password
);
// if given password does not match database, unauthorized
if (credentialsHashedPassword != passwordHashed)
{
return(new UnauthorizedResult());
}
// if here, the password is correct and a web session can be made
command.CommandText = @$ "
INSERT INTO web_sessions ( user_id )
OUTPUT inserted.*
VALUES ( '{userId}' )
";
reader = command.ExecuteReader();
// if nothing was returned, web session was not created
if (!reader.HasRows)
{
reader.Close();
return(new BadRequestResult());
}
// reader return row to get web session id
reader.Read();
var webSession = new WebSessionModel(reader);
reader.Close();
// if here, everything ran properly
return(new OkObjectResult(webSession));
}
