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using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL.Enumerations;
using SimpleValidator.Extensions;
using Newtonsoft.Json;
using System.Xml.Serialization;
using Tango.Core.Cryptography;
namespace Tango.BL.Entities
{
public partial class User : UserBase
{
private static IHashGenerator _hashGenerator;
private bool _passwordGatewayModified = false;
/// <summary>
/// Determines whether the user has the specified permission.
/// </summary>
/// <param name="permission">The permission.</param>
/// <returns>
/// <c>true</c> if the user has permission; otherwise, <c>false</c>.
/// </returns>
public bool HasPermission(Permissions permission)
{
return UsersRoles.Select(x => x.Role).ToList().SelectMany(x => x.RolesPermissions).ToList().Exists(x => x.Permission.Code == permission.ToInt32());
}
/// <summary>
/// Determines whether the user has role.
/// </summary>
/// <param name="role">The role.</param>
public bool HasRole(Roles role)
{
return UsersRoles.ToList().Exists(x => x.Role.Code == role.ToInt32());
}
/// <summary>
/// Gets the aggregated user roles as enumerations.
/// </summary>
[NotMapped]
public List<Role> Roles
{
get { return UsersRoles.Select(x => x.Role).ToList(); }
}
/// <summary>
/// Gets the aggregated user permissions as enumerations.
/// </summary>
[NotMapped]
public List<Permission> Permissions
{
get
{
return UsersRoles.Select(x => x.Role).ToList().SelectMany(x => x.RolesPermissions).Select(x => x.Permission).ToList();
}
}
private String _passwordGateway;
/// <summary>
/// Gets or sets the password gate way.
/// </summary>
[NotMapped]
[JsonIgnore]
[XmlIgnore]
public String PasswordGateWay
{
get
{
return _passwordGateway;
}
set
{
_passwordGateway = value;
Password = GetHashGenerator().Encrypt(_passwordGateway);
RaisePropertyChangedAuto();
_passwordGatewayModified = true;
}
}
protected override void RaisePropertyChanged(string propName)
{
base.RaisePropertyChanged(propName);
if (propName == nameof(Password))
{
RaisePropertyChanged(nameof(PasswordGateWay));
}
}
public override bool Validate(ObservablesContext context)
{
return base.Validate(context) && Contact.Validate(context) && Address.Validate(context);
}
protected override void OnValidating(ObservablesContext context)
{
base.OnValidating(context);
var users = context.Users.ToList();
if (users.Exists(x => x.Guid != Guid && x.Email.ToLower() == Email.ToLower()))
{
InsertError(nameof(Email), "The specified email is already taken by another account.");
}
if (!Email.IsEmail())
{
InsertError(nameof(Email), "The specified email address is invalid.");
}
if (_passwordGatewayModified)
{
if (!PasswordGateWay.IsBetweenLength(4, 30))
{
InsertError(nameof(PasswordGateWay), "A user password must be at least 4 characters long and maximum 30.");
}
}
}
/// <summary>
/// Gets the specified password hash.
/// </summary>
/// <param name="password">The password.</param>
/// <returns></returns>
public static String GetPasswordHash(String password)
{
return GetHashGenerator().Encrypt(password);
}
private static IHashGenerator GetHashGenerator()
{
if (_hashGenerator == null)
{
_hashGenerator = new BasicHashGenerator();
}
return _hashGenerator;
}
/// <summary>
/// Initializes a new instance of the <see cref="User" /> class.
/// </summary>
public User() : base()
{
}
}
}
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