/// <summary>
/// Gets information from the data source for a user. Provides an option to update the last-activity date/time stamp for the user.
/// </summary>
/// <returns>
/// A <see cref="T:System.Web.Security.MembershipUser"/> object populated with the specified user's information from the data source.
/// </returns>
/// <param name="username">The name of the user to get information for. </param><param name="userIsOnline">true to update the last-activity date/time stamp for the user; false to return user information without updating the last-activity date/time stamp for the user. </param>
public override MembershipUser GetUser(string username, bool userIsOnline)
{
var cacheKey = string.Format("UserData_{0}", username);
if (HttpRuntime.Cache[cacheKey] != null)
return (CustomMembershipUser)HttpRuntime.Cache[cacheKey];
using (var context = new MvcDemoEntities())
{
var user = (from u in context.Users.Include(usr => usr.UserRole)
where String.Compare(u.Username, username, StringComparison.OrdinalIgnoreCase) == 0
select u).FirstOrDefault();
if (user == null)
return null;
var membershipUser = new CustomMembershipUser(user);
//Store in cache
HttpRuntime.Cache.Insert(cacheKey, membershipUser, null, DateTime.Now.AddMinutes(_cacheTimeoutInMinutes), Cache.NoSlidingExpiration);
return membershipUser;
}
}
/// <summary>
/// Verifies that the specified user name and password exist in the data source.
/// </summary>
/// <returns>
/// true if the specified username and password are valid; otherwise, false.
/// </returns>
/// <param name="username">The name of the user to validate. </param><param name="password">The password for the specified user. </param>
public override bool ValidateUser(string username, string password)
{
if (string.IsNullOrEmpty(username) || string.IsNullOrEmpty(password))
return false;
using (var context = new MvcDemoEntities())
{
var user = (from u in context.Users
where String.Compare(u.Username, username, StringComparison.OrdinalIgnoreCase) == 0
&& String.Compare(u.Password, password, StringComparison.OrdinalIgnoreCase) == 0
select u).FirstOrDefault();
return user != null;
}
}
/// <summary>
/// Gets a list of the roles that a specified user is in for the configured applicationName.
/// </summary>
/// <returns>
/// A string array containing the names of all the roles that the specified user is in for the configured applicationName.
/// </returns>
/// <param name="username">The user to return a list of roles for.</param>
public override string[] GetRolesForUser(string username)
{
//Return if the user is not authenticated
if (!HttpContext.Current.User.Identity.IsAuthenticated)
return null;
//Return if present in Cache
var cacheKey = string.Format("UserRoles_{0}", username);
if (HttpRuntime.Cache[cacheKey] != null)
return (string[])HttpRuntime.Cache[cacheKey];
//Get the roles from DB
var userRoles = new string[] { };
using (var context = new MvcDemoEntities())
{
var user = (from u in context.Users.Include(usr => usr.UserRole)
where String.Compare(u.Username, username, StringComparison.OrdinalIgnoreCase) == 0
select u).FirstOrDefault();
if (user != null)
userRoles = new[]{user.UserRole.UserRoleName};
}
//Store in cache
HttpRuntime.Cache.Insert(cacheKey, userRoles, null, DateTime.Now.AddMinutes(_cacheTimeoutInMinutes), Cache.NoSlidingExpiration);
// Return
return userRoles.ToArray();
}