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comparison Agendas/trunk/src/Agendas.Web/Models/AccountModels.cs @ 10:c62b77fc33f4

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website inicial
author nelo@MTEySS.neluz.int
date Sun, 13 Mar 2011 18:51:06 -0300
parents
children 475be11edf56
comparison
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9:c90492faf268 10:c62b77fc33f4
1 using System;
2 using System.Collections.Generic;
3 using System.ComponentModel;
4 using System.ComponentModel.DataAnnotations;
5 using System.Globalization;
6 using System.Linq;
7 using System.Web;
8 using System.Web.Mvc;
9 using System.Web.Security;
10
11 namespace Agendas.Web.Models
12 {
13
14 #region Models
15
16 public class ChangePasswordModel
17 {
18 [Required]
19 [DataType(DataType.Password)]
20 [Display(Name = "Current password")]
21 public string OldPassword { get; set; }
22
23 [Required]
24 [ValidatePasswordLength]
25 [DataType(DataType.Password)]
26 [Display(Name = "New password")]
27 public string NewPassword { get; set; }
28
29 [DataType(DataType.Password)]
30 [Display(Name = "Confirm new password")]
31 [Compare("NewPassword", ErrorMessage = "The new password and confirmation password do not match.")]
32 public string ConfirmPassword { get; set; }
33 }
34
35 public class LogOnModel
36 {
37 [Required]
38 [Display(Name = "User name")]
39 public string UserName { get; set; }
40
41 [Required]
42 [DataType(DataType.Password)]
43 [Display(Name = "Password")]
44 public string Password { get; set; }
45
46 [Display(Name = "Remember me?")]
47 public bool RememberMe { get; set; }
48 }
49
50
51 public class RegisterModel
52 {
53 [Required]
54 [Display(Name = "User name")]
55 public string UserName { get; set; }
56
57 [Required]
58 [DataType(DataType.EmailAddress)]
59 [Display(Name = "Email address")]
60 public string Email { get; set; }
61
62 [Required]
63 [ValidatePasswordLength]
64 [DataType(DataType.Password)]
65 [Display(Name = "Password")]
66 public string Password { get; set; }
67
68 [DataType(DataType.Password)]
69 [Display(Name = "Confirm password")]
70 [Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
71 public string ConfirmPassword { get; set; }
72 }
73 #endregion
74
75 #region Services
76 // The FormsAuthentication type is sealed and contains static members, so it is difficult to
77 // unit test code that calls its members. The interface and helper class below demonstrate
78 // how to create an abstract wrapper around such a type in order to make the AccountController
79 // code unit testable.
80
81 public interface IMembershipService
82 {
83 int MinPasswordLength { get; }
84
85 bool ValidateUser(string userName, string password);
86 MembershipCreateStatus CreateUser(string userName, string password, string email);
87 bool ChangePassword(string userName, string oldPassword, string newPassword);
88 }
89
90 public class AccountMembershipService : IMembershipService
91 {
92 private readonly MembershipProvider _provider;
93
94 public AccountMembershipService()
95 : this(null)
96 {
97 }
98
99 public AccountMembershipService(MembershipProvider provider)
100 {
101 _provider = provider ?? Membership.Provider;
102 }
103
104 public int MinPasswordLength
105 {
106 get
107 {
108 return _provider.MinRequiredPasswordLength;
109 }
110 }
111
112 public bool ValidateUser(string userName, string password)
113 {
114 if (String.IsNullOrEmpty(userName)) throw new ArgumentException("Value cannot be null or empty.", "userName");
115 if (String.IsNullOrEmpty(password)) throw new ArgumentException("Value cannot be null or empty.", "password");
116
117 return _provider.ValidateUser(userName, password);
118 }
119
120 public MembershipCreateStatus CreateUser(string userName, string password, string email)
121 {
122 if (String.IsNullOrEmpty(userName)) throw new ArgumentException("Value cannot be null or empty.", "userName");
123 if (String.IsNullOrEmpty(password)) throw new ArgumentException("Value cannot be null or empty.", "password");
124 if (String.IsNullOrEmpty(email)) throw new ArgumentException("Value cannot be null or empty.", "email");
125
126 MembershipCreateStatus status;
127 _provider.CreateUser(userName, password, email, null, null, true, null, out status);
128 return status;
129 }
130
131 public bool ChangePassword(string userName, string oldPassword, string newPassword)
132 {
133 if (String.IsNullOrEmpty(userName)) throw new ArgumentException("Value cannot be null or empty.", "userName");
134 if (String.IsNullOrEmpty(oldPassword)) throw new ArgumentException("Value cannot be null or empty.", "oldPassword");
135 if (String.IsNullOrEmpty(newPassword)) throw new ArgumentException("Value cannot be null or empty.", "newPassword");
136
137 // The underlying ChangePassword() will throw an exception rather
138 // than return false in certain failure scenarios.
139 try
140 {
141 MembershipUser currentUser = _provider.GetUser(userName, true /* userIsOnline */);
142 return currentUser.ChangePassword(oldPassword, newPassword);
143 }
144 catch (ArgumentException)
145 {
146 return false;
147 }
148 catch (MembershipPasswordException)
149 {
150 return false;
151 }
152 }
153 }
154
155 public interface IFormsAuthenticationService
156 {
157 void SignIn(string userName, bool createPersistentCookie);
158 void SignOut();
159 }
160
161 public class FormsAuthenticationService : IFormsAuthenticationService
162 {
163 public void SignIn(string userName, bool createPersistentCookie)
164 {
165 if (String.IsNullOrEmpty(userName)) throw new ArgumentException("Value cannot be null or empty.", "userName");
166
167 FormsAuthentication.SetAuthCookie(userName, createPersistentCookie);
168 }
169
170 public void SignOut()
171 {
172 FormsAuthentication.SignOut();
173 }
174 }
175 #endregion
176
177 #region Validation
178 public static class AccountValidation
179 {
180 public static string ErrorCodeToString(MembershipCreateStatus createStatus)
181 {
182 // See http://go.microsoft.com/fwlink/?LinkID=177550 for
183 // a full list of status codes.
184 switch (createStatus)
185 {
186 case MembershipCreateStatus.DuplicateUserName:
187 return "Username already exists. Please enter a different user name.";
188
189 case MembershipCreateStatus.DuplicateEmail:
190 return "A username for that e-mail address already exists. Please enter a different e-mail address.";
191
192 case MembershipCreateStatus.InvalidPassword:
193 return "The password provided is invalid. Please enter a valid password value.";
194
195 case MembershipCreateStatus.InvalidEmail:
196 return "The e-mail address provided is invalid. Please check the value and try again.";
197
198 case MembershipCreateStatus.InvalidAnswer:
199 return "The password retrieval answer provided is invalid. Please check the value and try again.";
200
201 case MembershipCreateStatus.InvalidQuestion:
202 return "The password retrieval question provided is invalid. Please check the value and try again.";
203
204 case MembershipCreateStatus.InvalidUserName:
205 return "The user name provided is invalid. Please check the value and try again.";
206
207 case MembershipCreateStatus.ProviderError:
208 return "The authentication provider returned an error. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
209
210 case MembershipCreateStatus.UserRejected:
211 return "The user creation request has been canceled. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
212
213 default:
214 return "An unknown error occurred. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
215 }
216 }
217 }
218
219 [AttributeUsage(AttributeTargets.Field | AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
220 public sealed class ValidatePasswordLengthAttribute : ValidationAttribute, IClientValidatable
221 {
222 private const string _defaultErrorMessage = "'{0}' must be at least {1} characters long.";
223 private readonly int _minCharacters = Membership.Provider.MinRequiredPasswordLength;
224
225 public ValidatePasswordLengthAttribute()
226 : base(_defaultErrorMessage)
227 {
228 }
229
230 public override string FormatErrorMessage(string name)
231 {
232 return String.Format(CultureInfo.CurrentCulture, ErrorMessageString,
233 name, _minCharacters);
234 }
235
236 public override bool IsValid(object value)
237 {
238 string valueAsString = value as string;
239 return (valueAsString != null && valueAsString.Length >= _minCharacters);
240 }
241
242 public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
243 {
244 return new[]{
245 new ModelClientValidationStringLengthRule(FormatErrorMessage(metadata.GetDisplayName()), _minCharacters, int.MaxValue)
246 };
247 }
248 }
249 #endregion
250 }